Martina Mercado (nee Sosa), of Chicago was born January 3, 1951 in Mexico and passed away September 9, 2018. Martina was the beloved wife of the late Hector Mercado; loving mother of Adriana Santiago (the late Gil Eguia), Maria Gaona, William Santiago Jr. (Cyndi Negron Santiago); cherished grandmother of Angel, Lilia, Brandon, Ivan, Omar, Angelina, and Ava; great grandmother of Daniel; dear sister of jose Sosa, Sandra Romero, and Martha Sosa; fond aunt of many nieces and nephews. Visitation will be held at Woodlawn Funeral Home 7750 W. Cermak Rd Forest Park, IL on Friday September 14th from 3-8pm. Chapel service will be Saturday September 15th at 10am, with Interment to follow at Woodlawn Memorial Park Forest Park, IL. for more information please visit www.woodlawnchicago.com or call 708-442-8500.