They will continue their break from public duties before returning to work later this month.
The first member of the family back at the coalface will be the Princess Royal, who is due to attend the Oxford Farming Conference next Thursday.
Queen Camilla leaves after attending the Sunday morning church service at St Mary Magdalene church in Sandringham, Norfolk. Photo / Getty Images
The Duke and Duchess of Edinburgh also have a smattering of engagements scheduled throughout the month.
The King was last seen attending the Sandringham church service last Sunday, when he was joined by the Edinburghs, Princess Anne and her husband Vice Admiral Sir Timothy Laurence, and Peter Phillips and his fiancee, Harriet Sperling, as they continued their festive celebrations in Norfolk.
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