She's lowered into the crypt.
Unique moment in history when duke’s coffin is lowered into Royal Vault
The vault lies beneath the Quire of the chapel and the descent is controlled by an electric motor.
https://www.standard.co.uk/news/uk/queen-george-vi-margaret-chapel-amelia-b929960.html
> at a United Nations LGBTI Core Group Event in New York City, New York.