More floats from La Naval

Okay, so it's actually St. Vincent Ferrer. Thanks to Br Lawrence for pointing it out.

Now this one's easy. It's St. Peter Martyr who was killed with an knife to the head, hence here a knife is in his head. Old-fashioned obvious Catholic imagery at its best, before somebody decided that people couldn't possibly be represented as having bodies, I mean, that would counter heresy. See the Good News Bible illustrations if you don't get what I'm saying.