Mark Iacono

Mark Iacono, who launched the restaurant in 2006, was once knifed by an associate in a dispute over a woman — and now claims his own cousin is metaphorically stabbing him in the back.

Iacono says he was in the process of trademarking the Lucali name in April 2011 when the effort had to be mothballed while he “was recovering from injuries” suffered during the stabbing, according to court papers.

The cousin, Dominic Cavagnuolo, offered to step in and help but allegedly listed a company he controlled as the owner of the Lucali name, instead of Iacono, the pizza chef charges in a lawsuit.