Lazar
From the journal Coen keeps.
From Coen's journal
Lazar is Gavril's brother... and that might be the only reason he's still alive. Of the two, Lazar has always been the freer spirit, some might say 'absent-minded' or 'reckless'. But luckily, he's had Gavril, who used to get him out of trouble every step of the way. Oddly enough, I'd say it does them both good. Lazar is free to live as he wants (or maybe the only way he knows how), secure in the knowledge that his brother is watching over him. And Gavril has somebody to look after. It's not my place to judge them.