Ben Affleck and Jennifer Garner’s middle child introduced themselves as Fin Affleck at a memorial service for their grandfather, William Garner.

Previously known as Seraphina Rose, the 15-year-old wore a suit and tie with a buzz cut while reading from the Book of Proverbs.

Before the service, Fin had been seen with step-sibling Emme, Jennifer Lopez’s child.

Jennifer Garner announced her father’s passing over Easter, expressing gratitude for his long life and the medical teams that extended his time with family.

Fin is the second of three children, with older sister Violet, 18, and younger brother Samuel, 12.