First, I wanna say, I really like Davin's bio. A past full of sadness makes for a great character, in my humble opinion.
My little elf here came from a Dalish clan, which he ran away from once it got to be too much. He now owns a brothel in Rivain and is wandering about in the Brecillian forest currently, hoping he'll find an old friend.
Eresir has visited Denerim once or twice in his travels, so it's possible they ran into each other at some point.