There are two mausoleums within the grounds of Frogmore House, though the one dedicated to the Duchess of Kent was not her choice. She wanted to be interred back in Germany. Victoria of Saxe-Coberg-Saalfeld was the mother of Queen Victoria and, as the Duchess of Kent, she spent the latter part of her life residing in Frogmore House.
Sometime in the late 1850s it was decided to build a temple in the grounds, mainly as a summer house at the top and the final resting place on the lower floor.. However, the Duchess died in 1861, before the temple was completed, and so it was decided that the upper floor would become her mausoleum.
Duchess of Kent Mausoleum