Complex sentence: Thereafter the Ganzes bought heavily and very well in all periods of Picasso, and in 1956 they acquired the entire series of Picasso's variations of Eugène Delacroix's "The Women of Algiers".
Split into simpler sentences: Thereafter the Ganzes bought heavily and very well in all periods of Picasso. In 1956 they acquired the entire series of Picasso's variations of Eugène Delacroix's "The Women of Algiers".