Final answer:
The ancient Greek city known for its citadel dating from 1400-2300 BCE is Mycenae, which was the center of Mycenaean culture and the home to King Agamemnon.
Step-by-step explanation:
The ancient Greek city known for its citadel dating from 1400-2300 BCE is Mycenae. The citadel site of Mycenae was the center of Mycenaean culture and was the home to King Agamemnon according to Greek mythology. Mycenae is located on the Peloponnesian peninsula and overlooks the Argos plain.