There is a festive chill at Sandringham on Christmas Day morning - especially when you find yourself standing outside St Mary Magdalene Church at 5am, as I often have in my years as a royal correspondent.
Last year I watched as King Charles and Queen Camilla led the royal party to church on Christmas Day, followed by the Prince and Princess of Wales, holding the hands of their children as they spoke to the crowds.
The Princess kept a firm grip on playful Prince Louis while they were given Christmas cards and presents, along with dozens of flowers.
I could never have predicted that this was the last time we would see her in person for more than six months. I was expecting to head to Italy with the couple on a royal tour, but she wouldn't join the Royal Family on another official engagement until Trooping the Colour in June.
On 16 January, the Princess of Wales was admitted to hospital for major abdominal surgery. At the end of March, she went public with her cancer diagnosis and chemotherapy.
For her husband, it was the start of a year that he would go on to call "the hardest of his life".
It throws up memories of Queen Elizabeth's own "sombre year" of 1992 when there were multiple marriage breakdowns within the family and a major fire. At the time she described it with the now infamous phrase, "annus horribilis".