Odysseus and Penelope! from the Odyssey
Heathcliff & Catherine! from Wuthering heights
Elizabeth (Lizzy) Bennet & Fitzwilliam Darcy from Pride and Prejudice
Daisy & gastby from Great Gatsby
Guinivere & Lancelot from King Arthur stories
Marie & Pierre (Curie) the marriedn scientist couple who studied atoms, radiation
Tristan & Iseult (Isolde?) Irish story couple
Scarlett & Rhett - Gone with the the Wind
and don't forget bible couples: ttp://www.cbn.com/family/Marriage/elliott_FamousLovers.aspx
and here are a few greek couples :
http://www.loggia.com/myth/lovers.html
and a random couple's link:
http://www.billiesilvey.com/famous_lovers.html
My snakes are Lycaeus & Ariadne. Lycaeus is another name for Dionysus or Bacchus, and Ariadne was the woman who helped Theseus defeat the Minotaur. After he defeated the monster, he sort of left her hanging on some random island because she had betrayed her country (which is BS to me!), and she was left distruaght because she had loved him. So the god Dionysus found her and fell in love with her, and they lived happily ever after, etc.
I chose these because I really liked the story and the names & i studied a lot of Art history (what is more popular than greek/roman tales in rennisance art!), so just do a little searching around on google and you can probably turn up a few good ones! Depending on your interests, there are lots of cool paired or lists of names!
post when you've decided on something!