We are the sons of three sisters. Our mothers had two more sisters and two brothers who did not have children. They were in descending chronological order: Xariklia, Katina, Sofia, Kostas, Marika,Myrsini, and Hlias.
Most likely, there were some more siblings who died at birth or shortly after because there was a significant age difference (20 years?) between Christos' mother, Katina, and my mother, Myrsiny.
Below is the family trees of the three sisters, Katina, Marika, and Mysisni.