Matt Damon is a first time dad following the arrival of baby daughter ISABELLA yesterday (11JUN06). The actor's wife, Luciana Barroso, gave birth to the little girl in Miami, Florida. Barroso has a daughter, ALEXA, from a previous relationship. Damon admits they decided on the name Isabella just after they were informed the child would be a girl: "We've been calling her Isabella for months." Damon and Barosso wed in New York City in December (05).