The Manhattan district attorney said yesterday that Vilma Bautista also was found guilty of tax fraud and of using a fake document to authorize her sale of the painting.
The 1899 water lily painting was among four works that came into Bautista's possession after the fall of Ferdinand Marcos' government in 1986. She sold it in 2010 to a London gallery.
Defense lawyers said Bautista believed Imelda Marcos owned the paintings and Bautista had authority to sell them for her, though she never turned over the proceeds.