I'm commenting because I am the bearer of the name Amandus. It is my middle name and it's been passed down 3 generations- my grandfather had it, my father, and now me. I'm happy to have so a rare name that dates very far back into history.
Oh, awesome, first comment! Stating the obvious here, but the name Amanda is a feminine derivative of this name. :) This is my big sister's name, Amanda. She always wondered what the male equivalent to her name was, haha.