Complex sentence: She lives in Miami Beach with her husband Herman Echevarria and sons, Francisco "Frankie" Rosello and Pedro "Peter" Rosello, from her previous marriage to Pedro Luis Rosello.
Split into simpler sentences: She lives in Miami Beach with her husband Herman Echevarria and sons, Francisco "Frankie" Rosello and Peter Rosello. Alexia's sons are from her previous marriage to Pedro Luis Rosello.