from my wiki count real quick, i think 8.
Marcello, Moraes, Trinaldo, Bezerra, Prado, Silva, Maldonado, Nogueira.
that made me think. with those guys, Andy, Lyoto, Cigano, and Aldo, Black House has to be the best gym in the world. 3 Current UFC champs, a couple or so former champs. Nog has held both the UFC interim and Pride undisputed championship. Crazy. And Im not a Black House nut hugger. I <3 Chael Sonnen. But you just can't argue against the facts.