Determine the name of the British royal family.
The British royal family's name is Windsor. It was officially changed from Saxe-Coburg and Gotha to Windsor by King George V in 1917 due to anti-German sentiment during World War I.
Complete the following task based on the instruction and optional input provided.### Instruction:
Determine the name of the British royal family.

### Output:
The British royal family's name is Windsor. It was officially changed from Saxe-Coburg and Gotha to Windsor by King George V in 1917 due to anti-German sentiment during World War I.