Ya'qub had colic disease and was refusing treatments when advised to do so. As a result, he died on Wednesday, June 5, 879, at a place called Gundishabur. He was soon after succeeded by his brother Amr Saffari. Although he was not viewed as a gentleman, he also did not exercise any special cruelty. It was reported that he did not smile much, and was called "the anvil" by one his enemies. According to Ibn Khallikan, his wife was an Arab woman from Sistan, although all other sources, including Ibn Athir and Juzjani, claim that Yaqub never married.
Read more about this topic: Ya'qub-i Laith Saffari