During the First World War anti-German sentiment was rife in Britain and elsewhere. King George V's cousin Tsar Nicholas II of Russia and his entire family were killed during the Russian Revolution and out of fear of the same thing occurring in Britain, the royal family was encouraged to reject all titles held under the German crown and to change the royal house name from Germanic-sounding Saxe-Coburg-Gotha, to the more English-sounding Windsor.
The German Kaiser Wilhelm II, another cousin of George V, remarked with derision that he was looking forward to watching a production of Shakespeare's 'The Merry Wives of Saxe-Coburg-Gotha', referring to the name change.
An example of a royal country would be the United Kingdom. Its royal family is the Windsor Family.
The royal family's SURname is Windsor.
There are several "royal families" in the world. Each has a different surname. The family name of the British Royal Family is Windsor.
The Royal family name is Windsor.
The Queen's royal house is The House of Windsor.
Windsor. The UK Royal Family adopted the name Windsor by a royal proclamation of George V in 1917
The royal surname "Mountbatten-Windsor" first appeared on an official document in 1960. It was adopted by Queen Elizabeth II and Prince Philip's descendants, signifying a combination of the royal family's Windsor name and Philip's family name, Mountbatten. This surname was used to distinguish their descendants from other branches of the royal family.
Queen Elizabeth runs the Royal House of Windsor, and Windsor is the family's (including Prince William's) last name.
Because that is the royal family's surname
The current name of the British Royal Family is Windsor. If they are not in line to the throne immediately they are Mountbatten - Windsor or are issue if royal ladies then the second name applies
The Royal family uses the last name Mountbatten-Windsor when needed. Most often one is not needed for example Princess Beatrice of York doesn't use it. Lady Louise Windsor, daughter of Prince Edward and Sophie uses it.
Legally it would have been Mountbatten-Windsor, but as a [then] titled Royal she would never have needed to use it.Legally it would have been Mountbatten-Windsor, but as a [then] titled Royal she would never have needed to use it.