The three Hellenistic kingdoms formed by three of Alexander the Great's generals after his death were:
1. The Seleucid Empire :Founded by Seleucus I Nicator, who controlled much of Asia Minor, Mesopotamia, Persia, and parts of India.
2. The Ptolemaic Kingdom :Established by Ptolemy I Soter, who ruled over Egypt, including Alexandria, as well as parts of Cyprus and Palestine.
3. The Antigonid Kingdom :Founded by Antigonus I Monophthalmus, controlling Macedonia and Greece.
These kingdoms emerged from the division of Alexander's vast empire among his generals after his death, marking the beginning of the Hellenistic period in ancient history.
