MattCaspermeyer has made a mod for King's Bounty: The Legend, centering around creating offspring from H3 into the world of Ashan:

"What if you and the various wives in King's Bounty: The Legend created the Heroes of Might and Magic 3? That is the premise of a new mod that I'm working on that I'm classing more as a micro / mini expansion pack for King's Bounty: The Legend."