My Favourite is Katharine of Aragon, probably because I feel so sorry for her!
Ann Boleyn is popular, and I think the most famous - for losing her head.
(not a nice way to be remembered!).
When I was younger I remembered the order of the Wives with the word KAJACK.
K Katharine of Aragon
A Anne Boleyn
J Jane Seymour
A Anne of Cleves
C Catherine Howard
K Katherine Parr.