Giovanni Gentile

Described as the founder of Fascism, he’s certainly one of the founders of the movement.

Wikipedia has an article on him, which has “multiple issues”.  This article also leads to a “fascism portal” with collected pieces on the subject.

His thought definitely has roots in Marxist and Hegelian philosophy. This may be a problem for those who are determined to assert that Fascism is absolutely, positively, right-wing.