Laurence K. Avanzino is best known as the biological father of Kathy Hilton and the maternal grandfather of Paris Hilton and Nicky Hilton. He was not a celebrity, businessman, or public figure himself. He lived a quiet life away from the spotlight that later surrounded his famous descendants. His full name was Laurence Kenneth Avanzino, and he was sometimes called Larry by those close to him. He was born on December 26, 1935, in Boston, Massachusetts, and passed away on February 18, 1997, in New York at the age of 61. Despite his connection to one of America’s most famous families, he remained largely unknown to the public during his lifetime and never met his Hilton grandchildren.
Laurence K. Avanzino Quick Bio
| Detail | Information |
| Full Name | Laurence Kenneth Avanzino |
| Also Known As | Larry Avanzino |
| Born | December 26, 1935, Boston, Massachusetts |
| Died | February 18, 1997 (age 61) |
| Known For | Father of Kathy Hilton; grandfather of Paris and Nicky Hilton |
| Parents | Laurence Avanzino and Elizabeth Jean Chisholm |
| First Wife | Kathleen “Big Kathy” Dugan |
| Daughter | Kathy Hilton (born March 13, 1959) |
| Later Wife | Diane Campisi (five more children) |
| Occupation | Independent painter and decorator |
| Famous Grandchildren | Paris Hilton, Nicky Hilton, Barron Hilton II, Conrad Hilton III |
Early Life and Family Background
He was born and raised in Boston, Massachusetts, in the mid-1930s. He grew up in an ordinary American family, not in a household of wealth or fame. His parents were Laurence Avanzino and Elizabeth Jean Chisholm. Details about his childhood are sparse, but he came from a background that was far removed from the glamorous world his daughter would later marry into. In his youth, he attended Long Island University and played football. People who knew him described him as tall, handsome, and athletic, with a charismatic personality. He was also known to have a reckless streak and struggled with alcohol from an early age.
Laurence K. Avanzino Met Kathleen Dugan
He met Kathleen Mary Dugan in 1957. At the time, he was a football player at Long Island University, and Kathleen spotted him playing football with his brother on the lawn of his family’s home in Manhasset, New York. She was immediately drawn to him. According to accounts from people who knew them, Larry was very handsome, tall, muscular, and blonde. Kathleen’s sister described him as gorgeous and a total maniac. He came from a comfortable background and was described as somewhat spoiled by his parents, used to getting what he wanted. The two began a relationship that moved quickly, fueled by mutual attraction and a shared taste for excitement and drinking.
Marriage to Kathleen Dugan
Laurence and Kathleen eloped in 1958 after she became pregnant. The pregnancy happened the very first time they were intimate, which led to a quick shotgun marriage. Their first ceremony was a small elopement, but Kathleen’s family later organized a second, larger Catholic wedding for them. The marriage was turbulent from the start. Friends and family witnessed frequent screaming fights between the two, often followed by passionate reconciliations. He worked at a gas station because he had limited job skills at the time, while Kathleen took a job at a cosmetics counter. The couple separated in 1962 after Kathleen began an affair with Ken Richards, and their divorce was finalized in 1963. After the divorce, Kathleen went on to remarry several times, while he also remarried twice more.
Laurence K. Avanzino Children

He had one child with his first wife, Kathleen Dugan. Their daughter, Kathleen Elizabeth Avanzino, was born on March 13, 1959. She later became known to the world as Kathy Hilton after marrying Richard Hilton in 1979. Kathy Hilton is his most well-known child, and through her, he became the maternal grandfather of Paris Hilton, Nicky Hilton, Barron Hilton II, and Conrad Hilton III. After his divorce from Kathleen Dugan, he remarried twice and had several more children with his subsequent wives. These children from his later marriages are Kathy Hilton’s half-siblings on her father’s side, though they grew up separately from her and had little connection to the Hilton family’s public life. One of his daughters from a later marriage, Elizabeth Avanzino, spoke publicly about their father’s struggle with alcoholism, noting that addiction ran in the family.
Laurence K. Avanzino as Kathy Hilton’s Father
Laurence K. Avanzino was the biological father of Kathy Hilton. Kathy was born Kathleen Elizabeth Avanzino on March 13, 1959, the only child from his marriage to Kathleen “Big Kathy” Dugan. However, he did not raise Kathy. After his divorce from Big Kathy, Kathy grew up with her mother and stepfather Ken Richards, and she eventually took the Richards surname. His second wife Diane Campisi stated plainly that he did not bring Kathy up, so her life had nothing to do with him beyond the fact that Kathy carries his genes. He never met any of his Hilton grandchildren, including Paris and Nicky.
His Connection to Paris Hilton and the Hilton Family
Laurence K. Avanzino is the maternal grandfather of Paris Hilton and Nicky Hilton. His daughter Kathy married Richard Hilton in 1979, which brought his bloodline into the famous Hilton family. Through Kathy, he also became the grandfather of Barron Hilton II and Conrad Hilton III. Despite this direct biological link, he had no personal relationship with any of his Hilton grandchildren. He passed away in 1997, before Paris Hilton became a global celebrity. His connection to the Hilton family exists purely through bloodline, not through shared life or upbringing.
How He Is Connected to Kim and Kyle Richards

Laurence K. Avanzino is not related by blood to Kim Richards or Kyle Richards. They are the daughters of Kathleen “Big Kathy” Dugan and her second husband Kenneth Edwin Richards. Kathy Hilton is their half-sister through their shared mother, but Kathy’s father was Laurence, while Kim and Kyle’s father was Ken Richards. This means he had no biological or legal connection to Kim and Kyle. They belong to a different branch of the family tree, connected only through Big Kathy’s remarriages.
Career and Work Life
Laurence K. Avanzino worked as a painter and decorator for much of his adult life. On his death certificate, his occupation was listed as an independent painter. In his younger years, he was a football player at Long Island University, where he was described as tall, muscular, and athletic. After he and Big Kathy married, he took a job at a gas station because he had limited professional skills at that time. His work life was modest and hands-on, far removed from the wealth and glamour associated with the Hilton name.
Life After His Marriage to Kathleen Dugan
After his divorce from Kathleen Dugan in the early 1960s, Laurence remarried twice. He had three more daughters and two sons from those later marriages. His life after the divorce was largely separate from the world Big Kathy and Kathy Hilton inhabited. He struggled with alcoholism throughout his adult years, and his health declined significantly. In his late fifties, he was in a fight that left him unconscious. Big Kathy visited him before his death and was reportedly saddened to see how much the handsome young man she once loved had changed. He died in February 1997 at the age of 61, and was described as destitute at the time of his death.
Personal Life and Family Relationships
Laurence K. Avanzino’s personal life was marked by turbulence and distance from his famous first child. He was born into a comfortable Italian-American family and was described as spoiled by his parents, used to getting his way. He started drinking early in life and was known for reckless behavior, including wild driving and escapades. His marriage to Big Kathy was volatile, with friends witnessing screaming fights followed by passionate reconciliations. After their divorce, he built a separate family with his later wives, having five more children. His daughter from a later marriage Elizabeth Avanzino spoke about the family’s struggle with alcoholism. His personal relationships were largely disconnected from the Hilton and Richards family circles and he remained a distant figure in Kathy Hilton’s life until his death.
His Later Years and Death
In the final years of his life, Laurence K. Avanzino worked as an independent painter, taking on painting jobs for homes and small commercial properties in the New York and New Jersey area. His health had declined severely due to years of alcoholism, and he was described as frail, prematurely aged, and living in modest rented housing. Big Kathy visited him before his death and was reportedly saddened to see how much the handsome young man she once loved had changed. He died in February 1997 at the age of 61. Sources differ slightly on the exact date, with some listing February 18 and others February 20. His passing went unnoticed by the mainstream media, and there were no celebrity obituaries or public tributes from the Hilton family.
Laurence K. Avanzino’s Family Legacy
Laurence K. Avanzino’s legacy lives on through his daughter Kathy Hilton and her four children with Richard Hilton: Paris, Nicky, Barron, and Conrad. Despite this direct biological link, he never met any of his Hilton grandchildren, as the estrangement that began after his divorce from Big Kathy kept him entirely outside their lives. His second family, however, remembers him differently. He had five more children with his later wife Diane Campisi, and his daughter Elizabeth Avanzino spoke openly about the alcoholism that ran through their family line, noting that addiction does not discriminate between wealth and ordinary life. While the Hilton name represents fame and fortune, the Avanzino name represents the quieter, more troubled origins behind that celebrity story.
Frequently Asked Questions
1. Who was Laurence K. Avanzino?
He was the biological father of Kathy Hilton and the maternal grandfather of Paris Hilton and Nicky Hilton. He worked as an independent painter and was the first husband of Kathleen “Big Kathy” Dugan.
2. Did Laurence K. Avanzino ever meet Paris Hilton?
No. He never met any of his Hilton grandchildren. After his divorce from Big Kathy, he was completely separated from Kathy Hilton’s life, and Paris and Nicky grew up without knowing him.
3. Who was Laurence K. Avanzino’s wife?
His first wife was Kathleen “Big Kathy” Dugan. They married in 1958 and divorced in 1963. He later remarried twice and had more children.
4. How is Laurence K. Avanzino related to Kim and Kyle Richards?
He is not related to them by blood. Kim and Kyle’s father is Ken Richards, Big Kathy’s second husband. Kathy Hilton is their half-sister through their shared mother, but Laurence was Kathy’s father only.
5. When did Laurence K. Avanzino die?
He died in February 1997 at the age of 61. Sources list the date as either February 18 or February 20, 1997.
6. What did Laurence K. Avanzino do for a living?
He worked as an independent painter. In his younger years, he was a football player at Long Island University. After marrying Big Kathy, he briefly worked at a gas station.
7. Was Laurence K. Avanzino an alcoholic?
Yes. Reports state he struggled with alcoholism throughout his adult life, and his health declined severely because of it. His daughter from a later marriage also spoke about addiction running in the family.
Conclusion
Laurence K. Avanzino remains a quiet footnote in one of America’s most famous family trees. He was the biological father of Kathy Hilton and the maternal grandfather of Paris Hilton and Nicky Hilton, yet he lived and died far from the spotlight his descendants came to enjoy. His story is one of humble work, a brief and turbulent marriage to Kathleen “Big Kathy” Dugan, and a life that drifted away from the daughter he never raised. He worked as a painter, battled alcoholism, and passed away in 1997 at the age of 61 without ever meeting his famous grandchildren. While the Hilton name represents wealth and celebrity, the Avanzino name reminds us that behind every famous family lies a quieter, more complicated origin story.


