A crooked art dealer stole tens of millions of dollars from affluent clients after brokering the sales of their pricey pieces, according to the Manhattan DA’s Office.

Timothy Sammons, 61, of Manhattan and London, gained the trust of art lovers selling valuable works by artists including Pablo Picasso, Marc Chagall and Paul Signac, officials said. But he kept the money for himself to “fund his own lavish lifestyle,” DA Cyrus Vance Jr. said.

Sammons was arraigned Friday in Manhattan on larceny and fraud raps.