After the Mongol conquest of the Jin dynasty, in 1236, Ogedei gave Hebei (attached with 80,000 households) to the family of Tolui, who died in 1232. Kublai received an estate of his own, which included 10,000 households. Because he was inexperienced, Kublai allowed local officials free rein. Corruption amongst his officials and aggressive taxation caused large numbers of Chinese peasants to flee, which led to a decline in tax revenues. Kublai quickly came to his appanage in Hebei and ordered reforms. Sorghaghtani Beki sent new officials to help him and tax laws were revised. Thanks to those efforts, many of the people who fled returned.