What is Santa Claus more traditionally called in the UK?

Explanation

In the UK, Santa Claus is more traditionally called Father Christmas. Few families open their presents on Christmas Eve, the Royal family being a notable exception, but most wait until Christmas Day, December 25. At Christmas lunch the whole family will gather for Turkey, trimmings and the obligatory Christmas Crackers. Watching the Queen´s TV speech on Christmas Day is also an important tradition.