Royal Chapel of All Saints

The Royal Chapel of All Saints, also known colloquially as Queen Victoria's Chapel is a Grade II listed church in the grounds of the Royal Lodge in Windsor Great Park, Berkshire, England and is a royal peculiar, serving as an informal parish church for the inhabitants and staff of the Windsor Great Park. Services at the chapel are often attended by members of the British royal family, and Queen Elizabeth II regularly worshipped at the church for reasons of privacy.

Source: Wikipedia — Royal Chapel of All Saints (CC BY-SA 4.0)