Ashurbanipal was an Assyrian king, the son of Esarhaddon and the last strong king of the Neo-Assyrian Empire (934-609 BC). He is famed for amassing a significant collection of cuneiform documents for his royal palace at Nineveh. This collection, known as the Library of Ashurbanipal, is now housed at the British Museum. Despite being a popular king among his subjects, he was also known by for his cruelty to his enemies. Some pictures depict him putting a dog chain through the jaw of a defeated king and then making him lives in a dog kennel. Many paintings of the period exhibit his brutality. Documentation from the last years of Ashurbanipal's reign is scarce. The last attestations of Ashurbanipal's reign are of his year 38 (631 BC), but according to later sources he reigned for 42 years (627 BC).