I started working on the current royal family about 6 months ago, and now, having accomplished quite a bit, I wanted to share that (read:brag about it). (The euroaristo group used to have more of these updates! I miss them! They can be very encouraging!) So hopefully someone will take inspiration from this. :)
I'll start with the big one: as of just now, I have officially created/merged profiles for every single descendant of King Edward VII! Edward VII is Queen Elizabeth II's great grandfather. He's also a son of Queen Victoria, which means this is a huge step towards my eventual crazy goal of finishing all of Victoria's descendants. What I've been doing with these profiles is the following:
Merging duplicates or creating a new profile, as necessary, with the correct LNAB.
Filling in the rest of the name fields (I'm not sure I've been perfectly consistent there, but the names are definitely all there.), and the birth and death info.
Marking profiles as historically significant, if they are members of noble houses, through birth or marriage, or very closely related to one.
Adding Wikipedia links.
This alone is such a huge task that I have not been stopping to write bios. If you are interested in any of these profiles, and want to contribute to the biographies, send me a trusted list request and I'd be happy to add you!
I've also done some fun things with Template:Succession box:
First, if you start with Queen Elizabeth, you can click back through the kings and queens of the Commonwealth, Great Britain, etc., seeing when each monarch reigned, going back 300 years (to when the Hanovers took over for the Stuarts).
Second, if you start with Prince Charles, you can click through the line of succession to the thrones of the Commonwealth, going from Charles, through all of Elizabeth's descendants (the first 14 people in line).
Comments, suggestions, etc. welcome!