Board Thread:General Discussion/@comment-6057702-20130730010329/@comment-11477779-20130908224144

If you want a sort-of confirmation, go back and read the end of chapter 197. Hitsuguya is teaching Ichigo about the various classes of Menos. When he gets to Vasto Lorde class he mentions he mentions they are more powerful than a captain class shinigami and no one knows how much more powerful they become when turned into Arrancar. He goes on to state that if Aizen has just 10 of these Vasto Lorde class, then Soul Society is doomed. The scene then cuts to Aizen's castle in Las Noches where we see Ulquiorra asked to deliver his report to Aizen and TWENTY of Ulquiorra's comrades. That kind of states to me that Aizen had 20 Vasto Lordes. Of the Espada, Aaroniero was confirmed to only be a Gillian and Harribel is the only confirmed Vasto Lorde. But given what is implied in the chapter I stick by what I said before. In fact, I'd go so far as to say even more than 0-4 were Vasto Lordes before. Saris is right however, that there is no official confirmation, which does suck. lol