Ögedei was well known for his alcoholism. Chagatai entrusted an official to watch his habit, but Ögedei managed to drink anyway. It is commonly told that Ögedei did so by vowing to reduce the number of cups he drank a day then having cups twice the size created for his personal use. When he died at dawn on 11 December 1241, after a late-night drinking bout with Abd-ur-Rahman, the people blamed the sister of Tolui's widow and Abd-ur-Rahman. The Mongol aristocrats recognized, however, that the Khagan's own lack of self-control had killed him.