Looks like Manuel I Comnenus, SB 1962, maybe. If you could take it out of the flip and take another pic that would help.
Now that I see it, I'm thinking more of the Latin Rulers of Constantinople. http://www.wildwinds.com/coins/byz/latin_rulers/sb2046.jpg check this one out. But I will say it looks like your coin has a pretty bad bronze disease problem.