Which Japanese leaders held command during the attack on Nanjing in 1937?

During the 1937 attack on Nanjing, two primary Japanese leaders held command over the campaign:

• General Matsui Iwane: He held overall command of the Japanese forces during the campaign. Following World War II, he was executed by the Allied powers for his responsibility in the Nanjing Massacre.12
• Prince Yasuhiko Asaka: A member of the Imperial family and an army general, he assumed field command during the final assault on the city between December 5 and 10, 1937, while Matsui was ill. Some historians believe Asaka issued an order to "kill all captives," though this remains undetermined by evidence.21

While historians continue to debate whether explicit written orders for the mass killings were issued, it is clear that senior command failed to stop the atrocities, which included widespread executions, rape, and looting, carried out by Japanese troops after they entered the city.12