Grave Hema (Assassin's Creed: Origins)

A Salute To Pesnica! Remember HEPSERA said something about visiting the graves of Hema in the necropolis before departing to Alexandria... I swept the entire Siwa, but nothing found! Still want to go there and to pay tribute to the son Baleka. Pliz if someone knows where it is located (the necropolis, the grave) that verbally describe the location or post a screenshot... I apologize in Advance if this topic was already created.