Psamtik III (also spelled Psammetichus or Psammeticus) was the last Pharaoh of the Twenty-sixth Dynasty of Egypt from 526 BC to 525 BC. Most of what is known about his reign and life was documented by the Greek historian Herodotus in the 5th century BC. Herodotus states that Psamtik had ruled Egypt for only six months before he was confronted by a Persian invasion of his country led by King Cambyses II of Persia. Psammetichus was subsequently defeated at the Battle of Pelusium (525 BC), and fled to Memphis where he was captured. The deposed pharaoh was carried off to Susa in chains, and later executed.