Valentine was born Thursday in Los Angeles. The latest addition shares a birthday with his sister Estela Ines, 6. The couple, who've been married for seven years, also have another child, Marcelo Alejandro, 21 months.
Landy revealed that Valentine's middle name was inspired by a meeting with the Pope she and her director husband had earlier this year. "We got to meet the Pope and he blessed this baby. So part of the name might have something to do with our new Pope," she said in June. "The other part of the name we came up with on our own."