World's oldest acrobat?

Who is/was the world’s oldest active acrobat? I’m thinking that some guy in his nineties may not be able to do all those crazy swings and shit that some of his younger companions could do. But maybe I’m wrong.

In any case, who is the oldest recorded guy (or gal) who was/still is doing acrobatics?

Oh, and just for interests sakes, I’ll put in a second Q. Which acrobat holds the record for having started the latest in his/her career? I’ve heard of a few specimens that started in thier thirties, who although became competent performers, nevertheless didn’t achieve superstardom heights.