The principal deities worshipped in ancient Greek religion include important figures such as Zeus, the king of the gods; Hera, the goddess of marriage; and Athena, the goddess of wisdom and war. Each deity fulfilled specific roles and represented various human experiences and natural elements. Temples and rituals dedicated to these gods played a crucial role in community life, reflecting societal values and providing social cohesion. The narratives surrounding these deities formed the backbone of Greek mythology, influencing arts, philosophy, and religion.