Michael and Mara Della Croce of St. Louis are pleased to announce the birth of their third child, a son, Luca Piero Della Croce. He was born on Dec. 31, 2017, at 9:39 a.m. at Mercy Hospital-St. Louis. The baby was 19.5 inches long. He weighed 6 pounds, 16 ounces. Elder children are Joseph and Isabella. Maternal grandparents are Joseph and Marsha Numi of St. Louis. Paternal grandparents are Giampiero and the late Laura Della Croce of St. Louis.