After the king's death in 1868 his collection was united with the Wittelsbach antique collection which was founded already by Albert V, Duke of Bavaria. Later the museum got extended by purchase and donations. Among these private collections are the donations of Paul Arndt (1908), of James Loeb (1933), and of Hans von Schoen (1964). These comprehensive collections specialised in smaller antique objects, glassware, bronzes, terra-cottas, jewelry, gold and silver. During World War II the museum lost especially Etruscan pottery, which was stored in the bombed "Neue Pinakothek".