Faliero was the 55th Doge of Venice, a man who was, at least for a time, well respected. But his legacy is that he was the only doge decapitated for treason.
Research:

Percy Fawcett, Manuscript 512, and a Lost City in the Amazon, Pt. 2
37:10

Percy Fawcett, Manuscript 512, and a Lost City in the Amazon, Pt. 1
34:05

SYMHC Classics: Swill Milk
39:22