Iseion

Iseion was an ancient Egyptian temple in worship of Isis located on the small island of Pharos connected to Alexandria, Egypt. The temple was previously under the protection of the pharaoh Cleopatra, who declared it safe for Alexandrians visiting to pray.

In around 48 BCE, the Medjay, Bayek, helped Lysander, a former priest of Serapis at the Serapeum of Alexandria to escape to the temple, after he became wanted by the guards for giving food stolen from the soldiers to the citizens.

Reference

 * Assassin's Creed: Origins  – The Odyssey