St Peter's church in Wolferton is part of the Sandringham group of churches where The Revd Canon Dr Paul Williams is Rector.
The King and Queen were accompanied to the service by The Princess Royal and her husband Vice Admiral Sir Tim Laurence.
Incoming Archbishop Dame Sarah Mullally delivered the sermon ahead of the formal service at St Paul's Cathedral on Wednesday when she will be legally confirmed in the post prior to her enthronement in March at Canterbury Cathedral.
All photos credit: Mark Wilson