Scorsone and Giles were wed in Toronto in June 2009 and share three children together -- daughters Eliza, 7, Paloma "Pippa" Michaela, 3, and Arwen, who was born in December.

Caterina Scorsone of Grey's Anatomy revealed on New Year's Eve Tuesday that she had welcomed her third daughter, named Arwen Giles.

The couple's separation was announced just five months after they welcomed their third child together.

"Grey's Anatomy" star Caterina Scorsone and her musician husband Rob Giles have decided to part ways after 10 years of marriage. According to People magazine, Scorsone and Giles have decided to co-parent their three daughters: Eliza, seven, Paloma "Pippa" Michaela, three, and Arwen, who was born in December. "Caterina and Rob have separated. They remain friends and are committed to co-parenting their children in a spirit of love," the duo's representative said in a statement. The actor, known for playing Amelia Shepherd on Grey's Anatomy, tied the knot with Giles in 2009.