He is a governor, former corporate executive, and onetime federal prosecutor.

Now, Deval Patrick can add another title to his resume: grandfather.

The governor’s office announced today that Patrick’s eldest daughter, Sarah Baker Patrick Morgese, and her husband, Marco Morgese, welcomed a baby boy this morning. Gianluca Noah Patrick Morgese arrived two months early, weighing 2 pounds 8 ounces. He was born in San Francisco.

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“Mother and son are well,” Patrick’s office said. “Poppy and Nonna (aka the governor and the first lady) are over the moon.”

Sarah Patrick married Marco Morgese, a former Italian soldier, in September 2011 at a small ceremony that was officiated by the governor at his “Sweet P Farm’’ in Richmond.

While campaigning for reelection in 2010, Patrick playfully referred to his daughter’s then-suitor as “Marco, the Italian surfer.’’ The governor and his wife, Diane, have a younger daughter, Katherine, who has been active in the gay rights movement and on her father’s campaigns.