"Kate and William are hugely excited about the festive season and even though George will be only five months old, they know this is a time they'll cherish forever."
Surrounded by 30-odd doting relatives, the future King will get his first glimpse of the Queen's 18-foot pine Christmas tree, which she decorates herself each year.
The family event could also coincide with the Cambridges moving into their new 10-bedroom country bolthole in the grounds of Sandringham.
"Kate is very close to her family. Any child's first Christmas is one no grandparent would want to miss," a source told The Sun.
Prince Harry is set to be there after missing it last year when he was fighting in Afghanistan.
The Middletons could make it the biggest Christmas for some years at Sandringham, with the majority of The Queen's children, grandchildren and great-grandchildren likely to attend.
Pricesses Eugenie and Beatrice as well as the pregnant Zara Phillips and her rugby star husband Mike Tindall are on the invitation list.
At the heart of the celebrations is the Christmas Day service at the estate's church, which the Queen almost missed because Prince Philip was unwell in 2012.
This year's service is likely to be the first time Prince George has been seen in public since his birth in July.
Kensington Palace refused to comment today.
- DAILY MAIL
