Theresa Líf is the eldest daughter of Icelandic strongman and actor Hafthor Julius Bjornsson, famously known as The Mountain from HBO’s hit series Game of Thrones. Born in 2009, Theresa is Hafthor’s first child and the daughter of his former girlfriend, Thelma Björk Steimann. Despite her father’s global fame and massive presence in the world of sports and entertainment, Theresa lives a peaceful and private life far away from the spotlight. Her story is one of simplicity, family love, and the balance between fame and privacy. While many celebrity children grow up under the eyes of millions, Theresa’s parents have chosen a more discreet path for her — allowing her to enjoy a normal childhood surrounded by love, care, and education.
Profile Summary: Theresa Líf
| Attribute | Details |
|---|---|
| Full Name | Theresa Líf Björnsdóttir |
| Famous For | Being the first daughter of Icelandic strongman and actor Hafthor Julius Bjornsson (The Mountain from Game of Thrones) |
| Date of Birth | 2009 |
| Age (as of 2025) | 16 Years Old |
| Place of Birth | Iceland / Denmark |
| Nationality | Icelandic-Danish |
| Religion | Christianity (Not publicly confirmed) |
| Father | Hafthor Julius Bjornsson – Icelandic strongman, actor, and fitness icon |
| Mother | Thelma Björk Steimann – Hafthor’s former girlfriend, residing in Denmark |
| Half-Siblings | 1. Stormur Magni Hafthorsson (Half-brother, born 2020) 2. Grace Morgan Hafthorsdottir (Half-sister, born and passed away 2023) |
| Grandparents | – Bjorn Thor Reynisson (Grandfather) – Ragnheidur Margret Juliusdottir (Grandmother) |
| Aunts | Hafdis Lind Björnsdóttir, Bryndís Björg Björnsdóttir |
| Current Residence | Denmark, living with her mother |
| Ethnicity | Icelandic |
| Zodiac Sign | Not publicly known |
| Language(s) | Icelandic, Danish, and English (presumed) |
| Education | Schooling in Denmark (Private details undisclosed) |
| Marital Status | Unmarried |
| Social Media Presence | None (kept private by family choice) |
| Known Relatives in Media | Hafthor Bjornsson (The Mountain in Game of Thrones), Kelsey Henson (stepmother, fitness influencer) |
| Lifestyle | Private, family-oriented life in Denmark |
| Net Worth | Not applicable (minor) |
| Notable Fact | Despite being the daughter of a world-famous strongman, Theresa lives a completely private and peaceful life away from fame and public attention. |
Early Life and Background
Theresa Líf was born in 2009, a time when her father, Hafthor Bjornsson, was building his reputation as a professional strongman in Iceland. Her mother, Thelma Björk Steimann, played a significant role in raising her, ensuring that Theresa’s early years were grounded in peace and stability. Although born into fame, she grew up with a sense of normalcy, far away from media attention. Her nationality reflects a blend of Icelandic and Danish roots — Iceland through her father, and Denmark, where she currently resides, through her mother.
As the first child of one of Iceland’s most iconic athletes, Theresa has always been part of a family admired for strength, discipline, and heritage. She represents the next generation of the Bjornsson family — one that embodies both the power of her father’s legacy and the calm stability of her mother’s love.
SEO Insight: The keywords “Theresa Líf,” “Hafthor Bjornsson’s daughter,” and “The Mountain’s daughter” naturally align with this section, helping it perform strongly on Google search for people looking to learn about Hafthor’s family background.
Life With Her Mother, Thelma Björk Steimann
Following her parents’ separation, Theresa Líf remained with her mother, Thelma Björk Steimann, in Denmark. Thelma has been a devoted mother, ensuring Theresa has a quiet upbringing away from cameras and public scrutiny. Together, they have built a comfortable life that prioritizes education, normal childhood activities, and family values.
Although Hafthor was not always physically present during Theresa’s early years due to his intense training schedules and international competitions, he remained emotionally connected to her. There were times when he struggled to visit due to travel restrictions and personal obligations. He once admitted in interviews that he went almost three years without seeing her, which was a painful period for him as a father. However, he maintained weekly phone calls every Sunday, which he described as “the highlight of his week.”
Over time, the situation improved. Hafthor made efforts to visit Denmark more often and reestablished a warm and healthy relationship with his daughter. This part of Theresa’s life shows the strength of family ties even when separated by distance and circumstance.
Relationship With Her Father, Hafthor Bjornsson

The bond between Theresa Líf and her father, Hafthor Bjornsson, is one built on love, patience, and emotional depth. While Hafthor’s professional life as an athlete and actor often kept him busy, he has always spoken with pride and affection about his daughter. In several interviews, he has emphasized that fatherhood means more to him than any championship or record.
Hafthor’s journey from being one of the strongest men in the world to a loving father shows a softer, more emotional side of his personality. He has often expressed regret about the limited time he had with Theresa in her early childhood, but he made it his mission to stay connected. Their bond has grown stronger over the years, and he continues to cherish every moment spent with her.
Theresa, though not in the public eye, remains a symbol of Hafthor’s dedication to family. She reminds him that life’s greatest achievements go beyond trophies — they lie in the relationships and love we nurture. This section resonates with the emotional core of readers, keeping the tone warm and human while maintaining SEO richness with terms like “Hafthor Bjornsson’s relationship with daughter Theresa Líf” and “strongman fatherhood.”
Hafthor’s New Family and Children
After parting ways with Thelma, Hafthor found love again with Kelsey Henson, a Canadian fitness professional and influencer. The two got married in 2018, marking a new chapter in Hafthor’s life. Together, they have a son named Stormur Magni Hafthorsson, born on September 26, 2020. The couple shared joyful updates about Stormur’s birth, and Hafthor often expresses his pride as a father of two.
In November 2023, Hafthor and Kelsey experienced a deep tragedy — the stillbirth of their daughter, Grace Morgan Hafthorsdottir, at just over 21 weeks of pregnancy. The family publicly shared their heartbreak, and fans around the world expressed their condolences. This painful moment revealed the humanity behind Hafthor’s public persona, showing that even the strongest man faces emotional trials.
For Theresa, this meant the addition of half-siblings — a younger brother and a late sister — who are part of her extended family. Although she lives separately, Theresa remains an integral part of Hafthor’s life, connected through love and shared experiences. Their blended family reflects resilience, compassion, and an unbreakable fatherly bond that transcends distance.
Theresa Líf’s Family Tree and Heritage

Theresa’s background reflects a rich Icelandic heritage and a lineage filled with strength, achievement, and integrity. Below is a look at her family structure:
Immediate Family
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Father: Hafthor Julius Bjornsson — Icelandic strongman champion and actor, best known for portraying Gregor “The Mountain” Clegane in Game of Thrones.
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Mother: Thelma Björk Steimann — Hafthor’s former partner and Theresa’s primary guardian, residing in Denmark.
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Half-Siblings:
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Stormur Magni Hafthorsson (born 2020)
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Grace Morgan Hafthorsdottir (born and passed away in 2023)
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Extended Family
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Grandfather: Bjorn Thor Reynisson
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Grandmother: Ragnheidur Margret Juliusdottir
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Aunts: Hafdis Lind Björnsdóttir and Bryndís Björg Björnsdóttir
Theresa belongs to a respected Icelandic family known for their contribution to sports and fitness. Her father’s legacy as a World’s Strongest Man champion and cultural icon adds depth to her heritage, while her mother’s calm and private life in Denmark gives her a grounded upbringing.
A Quiet and Private Life
Unlike many celebrity children, Theresa Líf has no public social media presence and avoids media appearances. This privacy is intentional and respected by both her parents. In a world where celebrity children often become subjects of gossip and paparazzi photos, Theresa’s family has made the conscious decision to shield her from such exposure.
Her life is described as quiet, peaceful, and focused on education and family. She spends most of her time in Denmark, attending school and enjoying a regular lifestyle. This decision by her parents shows their desire to let her grow up free from public pressure.
Theresa’s story stands as a reminder that fame is not the ultimate goal — peace, safety, and happiness matter more. Her childhood away from media chaos reflects the values of privacy and love that her family deeply cherishes.
What Hafthor Bjornsson Says About Being a Father
Hafthor Bjornsson has often shared heartfelt thoughts about being a father. He describes fatherhood as the most rewarding role of his life, more fulfilling than lifting world records or winning titles. In interviews and social media posts, he’s emphasized that “being a good dad means more to me than being the strongest man.”
He has openly discussed the struggles of being away from Theresa in her early years and how that experience taught him to value family time above everything. His reflections often highlight that strength is not only about muscles or medals but about emotional endurance and love.
These statements humanize Hafthor, giving readers a deeper appreciation of his life outside fame. The keyword “Hafthor Bjornsson fatherhood quotes” naturally fits this section and improves SEO ranking for emotional, family-centered content.
Conclusion
In conclusion, Theresa Líf represents the human side of fame — a child growing up in love, balance, and humility despite her father’s worldwide recognition. Her life is defined not by the lights of Hollywood but by the warmth of family values. She continues to live peacefully with her mother in Denmark, connected to her father’s expanding family and his undying affection.
Through her, we see that even among celebrities, there’s a deep respect for personal space and the innocence of childhood. For Hafthor Bjornsson, being a father to Theresa is a blessing that gives meaning beyond the trophies, fame, and strength.
Theresa’s story is touching, pure, and inspiring — a reflection of love’s quiet power. It reminds us that greatness isn’t just built in gyms or on screens but also in the hearts of those who protect and nurture family bonds.
FAQs About Theresa Líf
1. Who is Theresa Líf?
Theresa Líf is the first daughter of Icelandic strongman and actor Hafthor Julius Bjornsson, best known for playing The Mountain in Game of Thrones. She was born in 2009 and lives in Denmark with her mother, Thelma Björk Steimann. Despite her father’s fame, Theresa leads a private and peaceful life away from the public spotlight.
2. Who is Theresa Líf’s mother?
Theresa’s mother is Thelma Björk Steimann, the former girlfriend of Hafthor Bjornsson. Thelma has kept a low profile and raised Theresa in Denmark. She has focused on giving her daughter a normal, happy upbringing outside of media attention.
3. Where does Theresa Líf live?
Theresa currently lives in Denmark with her mother. Although her father, Hafthor, resides in Iceland with his wife Kelsey Henson and their son Stormur, Theresa maintains a loving relationship with him and visits when possible.
4. How many children does Hafthor Bjornsson have?
Hafthor Bjornsson has three children:
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Theresa Líf, his first daughter with ex-girlfriend Thelma Björk Steimann.
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Stormur Magni Hafthorsson, his son with wife Kelsey Henson.
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Grace Morgan Hafthorsdottir, his late daughter who was tragically stillborn in November 2023.
5. What is known about Theresa Líf’s early life?
Theresa was born in 2009 and spent her childhood in Denmark. Her parents separated when she was very young, and she grew up primarily with her mother. Hafthor often spoke about missing her deeply during his strongman years but kept in touch through weekly phone calls and visits as she grew older.
6. Does Theresa Líf have social media accounts?
No, Theresa Líf does not have any public social media accounts. Her parents have chosen to keep her away from online exposure to protect her privacy and ensure a safe, normal childhood away from fame and publicity.
7. What is the relationship between Hafthor Bjornsson and his daughter Theresa Líf?
The relationship between Hafthor and Theresa is built on love, patience, and understanding. Despite long periods apart in her early years, Hafthor has always spoken fondly about her and made consistent efforts to be present in her life. Today, their father-daughter bond remains strong and affectionate.
8. Who is Hafthor Bjornsson’s current wife?
Hafthor is married to Kelsey Henson, a Canadian fitness trainer and influencer. The couple married in 2018 and have built a strong, family-oriented life together. They share a son, Stormur Magni, and continue to cherish the memory of their late daughter, Grace Morgan.
9. What does Hafthor Bjornsson say about fatherhood?
Hafthor has described fatherhood as the most fulfilling part of his life, even more rewarding than winning world titles. He often shares that being a good father is his true measure of success, emphasizing that emotional strength is just as important as physical power.
10. Why is Theresa Líf not in the media or public spotlight?
Theresa’s parents made a conscious choice to protect her privacy. As a young child of a global celebrity, exposure could bring unwanted attention. By keeping her life private, her family ensures she grows up safely, focusing on education, friends, and normal experiences rather than fame.
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