桓玄
One emperor under whom Gu Kaizhi served was Huan Xuan. An enthusiastic art collector, ahead of his accession Huan Xuan ordered a big boat to store paintings and other treasures so that they could be easily transported to safety in case of war. Gu Kaizhi entrusted to the emperor a sealed chest with his most precious works. The emperor broke open the box, stole the paintings, then repaired and returned it to the artist with the seals intact. Upon discovering his loss, Gu Kaizhi said that, "the marvelous works partook of divine power, transformed themselves and vanished, like men ascending to join the immortals."