Question: Where did Patti Davis's mother die?

Knowledge 1: Patti Davis
Patricia Ann Davis (née Reagan; October 21, 1952) is an American actress and author.She is the daughter of U.S. president Ronald Reagan and his second wife, First Lady Nancy Davis Reagan. [SEP] Knowledge 2: Nancy Reagan
Nancy Davis Reagan (born Anne Frances Robbins; July 6, 1921 – March 6, 2016) was an American film actress and the wife of Ronald Reagan, the 40th president of the United States.She was the first lady of the United States from 1981 to 1989.She was born in New York City.After her parents separated, she lived in Maryland with an aunt and uncle for six years.When her mother remarried in 1929, she moved to Chicago and later took the name Davis from her stepfather.As Nancy Davis, she was a Hollywood actress in the 1940s and 1950s, starring in films such as "The Next Voice You Hear...Night into Morning", and "Donovan's Brain".In 1952, she married Ronald Reagan, who was then president of the Screen Actors Guild.They had two children together.Reagan was the first lady of California when her husband was governor from 1967 to 1975, and she began to work with the Foster Grandparents Program.Reagan became First Lady of the United States in January 1981, following her husband's victory in the 1980 presidential election.Early in his first term, she was criticized largely due to her decision to replace the White House china, which had been paid for by private donations.Following years of lax formality, she decided to restore a Kennedyesque glamour to the White House, and her interest in high-end fashion garnered much attention as well as criticism.She championed recreational drug prevention causes when she founded the "Just Say No" drug awareness campaign, which was considered her major initiative as First Lady.More discussion of her role ensued following a 1988 revelation that she had consulted an astrologer to assist in planning the president's schedule after the attempted assassination of her husband in 1981.She generally had a strong influence on her husband and played a role in a few of his personnel and diplomatic decisions.After Ronald Reagan's term as president ended, the couple returned to their home in Bel Air, Los Angeles, California.Nancy devoted most of her time to caring for her husband, who was diagnosed with Alzheimer's disease in 1994, until his death at the age of 93 on June 5, 2004.Reagan remained active within the Reagan Library and in politics, particularly in support of embryonic stem cell research, until her death from congestive heart failure at age 94 on March 6, 2016.
Knowledge 1: Nancy Reagan
Nancy Davis Reagan (born Anne Frances Robbins; July 6, 1921 – March 6, 2016) was an American film actress and the wife of Ronald Reagan, the 40th president of the United States.She was the first lady of the United States from 1981 to 1989.She was born in New York City.After her parents separated, she lived in Maryland with an aunt and uncle for six years.When her mother remarried in 1929, she moved to Chicago and later took the name Davis from her stepfather.As Nancy Davis, she was a Hollywood actress in the 1940s and 1950s, starring in films such as "The Next Voice You Hear...Night into Morning", and "Donovan's Brain".In 1952, she married Ronald Reagan, who was then president of the Screen Actors Guild.They had two children together.Reagan was the first lady of California when her husband was governor from 1967 to 1975, and she began to work with the Foster Grandparents Program.Reagan became First Lady of the United States in January 1981, following her husband's victory in the 1980 presidential election.Early in his first term, she was criticized largely due to her decision to replace the White House china, which had been paid for by private donations.Following years of lax formality, she decided to restore a Kennedyesque glamour to the White House, and her interest in high-end fashion garnered much attention as well as criticism.She championed recreational drug prevention causes when she founded the "Just Say No" drug awareness campaign, which was considered her major initiative as First Lady.More discussion of her role ensued following a 1988 revelation that she had consulted an astrologer to assist in planning the president's schedule after the attempted assassination of her husband in 1981.She generally had a strong influence on her husband and played a role in a few of his personnel and diplomatic decisions.After Ronald Reagan's term as president ended, the couple returned to their home in Bel Air, Los Angeles, California.Nancy devoted most of her time to caring for her husband, who was diagnosed with Alzheimer's disease in 1994, until his death at the age of 93 on June 5, 2004.Reagan remained active within the Reagan Library and in politics, particularly in support of embryonic stem cell research, until her death from congestive heart failure at age 94 on March 6, 2016. [SEP] Knowledge 2: Theodora Richards
Theodora Dupree Richards (born March 18, 1985) is an American model and the daughter of Patti Hansen and Rolling Stones guitarist Keith Richards, and the older sister of Alexandra Richards.
Knowledge 1: Patti Davis
Patricia Ann Davis (née Reagan; October 21, 1952) is an American actress and author.She is the daughter of U.S. president Ronald Reagan and his second wife, First Lady Nancy Davis Reagan. [SEP] Knowledge 2: Theodora Richards
Theodora Dupree Richards (born March 18, 1985) is an American model and the daughter of Patti Hansen and Rolling Stones guitarist Keith Richards, and the older sister of Alexandra Richards.

Answer: Bel Air