Answer
In the renowned Battle of Ipsus in 301 BC, Antigonus I Monophthalmus, the ambitious general and successor of Alexander the Great, met his end. This fateful encounter marked the end of his dream of conquering all of Alexander's vast empire. The conflict saw Antigonus facing the combined forces of three formidable adversaries: Seleucus, Lysimachus, and Cassander.