Arianna "Ari" Grace Horton is a fictional character from the NBC soap opera Days of Our Lives. She is the daughter of the late, Will Horton and Gabi Hernandez. She was born on May 21, 2013 in an abandoned shed on Smith Island, delivered by Sonny Kiriakis. Arianna weighed 7 pounds and was 20 inches long. She was named after her deceased aunts, Arianna Hernandez and Grace McCormick DiMera, the baby her maternal uncle raised. Her godparents are Sonny Kiriakis and Abigail Deveraux.