The Broadway composer shared the news on Twitter where he said that he became father to a baby boy named Francisco Miranda.
"Int. Hospital Room. Night. (The screams reach a delirious crescendo. Francisco Miranda enters. He is 7 pounds and 13 ounces.) Intermission," he posted along with a photograph of his son.
The Tony-winning creator of "Hamilton" had shared the news of Nadal's pregnancy in December last year after the couple walked the red carpet at the London Evening Standard Theatre Awards.
Miranda and Vandal are already parents to three-year-old son, Sebastian. The couple got married in 2010.
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