Tantamani's attempt

In 663 BC, Tantamani launched a full-scale invasion of Lower Egypt, taking Memphis in April of this year, killing Necho I of Sais in the process as Necho had remained loyal to Ashurbanipal. Tantamani barely had the time to receive the submission of some Delta kinglets and expel the remaining Assyrians that a large army led by Ashurbanipal and Necho's son Psamtik I came back. Tantamani was defeated north of Memphis and Thebes was thoroughly sacked shortly after.