Dear Yasmin,
Great-grandpa, Mommy's grandpa came to see you this morning. He was so happy to hold you. This evening we went to the full-month celebration of the son of Mommy's aunt, your grand-aunt. She is the daughter of Great-grandpa's brother, so the baby is your uncle, but he is younger than you by 1 month. 2 of your grand-aunt and a grand-uncle have not settled yet, so there will be many uncles and aunties that are even younger than you are.