Lord Anduin Lothar, the Lion of Azeroth, was the last true descendant of the ancient Arathi bloodline, a knight champion of the Kingdom of Azeroth during the First War, and the supreme commander of the armies of the Alliance of Lordaeron during the Second War. He perished in combat at the base of Blackrock Mountain against the orc Warchief Orgrim Doomhammer just before the end of the Second War and the closing of the Dark Portal. He is considered one of the greatest warriors of all time. King Varian Wrynn named his son, Anduin Wyrnn, the crown prince of Stormwind City after him.
Adapted from Wowpedia