You'll probably get lots of suggestions and things get complicated with the Windsor's. In 1917, the name House of Saxe-Coburg and Gotha was changed to House of Windsor by King George V (Edward's son), largely because of anti-German sentiment during WW I.
So Edward VII (son of Queen Victoria) and his son, George V (until his 1917 proclamation), ruled as the House of SCG. In 1917, however, George V issued this proclamation: "Now, therefore, We, out of Our Royal Will and Authority, do hereby declare and announce that as from the date of this Our Royal Proclamation Our House and Family shall be styled and known as the House and Family of Windsor, and that all the descendants in the male line of Our said Grandmother Queen Victoria who are subjects of these Realms, other than female descendants who may marry or may have married, shall bear the said Name of Windsor..." Thus, Edward VIII, later Duke of Windsor and son of Edward VII, had the royal surname of "Windsor". You could reasonably use "Windsor" as the royal surname and use the suffix field to denote his two titles: King Edward VIII, later Duke of Windsor. In 1952, Queen Elizabeth II reaffirmed George V's proclamation and managed to make this situation even more complicated. Some of her descendants are "Windsor", but others are "Montbatten-Windsor". As for the Archduke of Austria, I believe he was of the House of Habsburg. I'm sure others will have better suggestions; as I said previously, things can get complicated. Jon Legacy User Group guidelines: http://www.LegacyFamilyTree.com/Etiquette.asp Archived messages: http://www.mail-archive.com/legacyusergroup@legacyfamilytree.com/ Online technical support: http://www.LegacyFamilyTree.com/Help.asp To unsubscribe: http://www.LegacyFamilyTree.com/LegacyLists.asp