Pietro Acciarito
Italian anarchist
Pietro Umberto Acciarito (1871–1943) was an Italian anarchist.
Born in Artena, Acciarito was an ironsmith by trade and lived near Rome. He formed an ironsmith business called "Fratelli Acciarito". He was an atheist.
He is mainly known for his attempt to stab Umberto I, king of Italy on 22 April 1897, for which he was sent to prison for life.