By peoplestaff225
Updated August 15, 2008 11:00 AM
Photographer Mary McCartney and her boyfriend, filmmaker Simon Aboud, 43, welcomed their first child together, son Sam, on Monday, August 11th.

The new baby is the third for Mary, 38, who is the daughter of Sir Paul McCartney. She is also mom to two sons — Arthur Alistair, 9, and Elliot, 6 — from her marriage to director Alistair Donald.

Source: The Mirror and Fashion Week Daily; Photo by Eamonn McCormack/WireImage.

Thanks to CBB reader Kelly.