A new cache of Pablo Picasso works from the personal collection of his granddaughter, Marina Picasso, said to be worth $290 million, are about to hit the market, reports the New York Post's Page Six.

Among the seven pieces allegedly for sale is a 1923 portrait of Marina's grandmother, Picasso's first wife, Olga Khokhlova. Titled "Portrait de femme (Olga)," it is thought to be worth $60 million. Dating from 1905 through 1965, the works being offered are also thought to include "Maternité" (1921), valued at about $54 million, and "Femme a la Mandoline (Mademoiselle Leonie assie)" 1911, worth roughly $60 million.