Windsor Castle is the resting place of more than a dozen English and British kings and queens.
Most are buried in St. George's Chapel, including Henry VIII, who died in 1547, and Charles I, who was beheaded in 1649.
The queen will be buried at the King George VI Memorial Chapel, which is next to the quire of the main St George's Chapel.
St George's Chapel hosted the funerals of Philip, the queen's father, her grandfather George V, and great-grandfather Edward VII.
Prince William, now heir to the throne, was confirmed there.