For over 50 years, he dressed everyone from first ladies such as Jacqueline Kennedy Onassis and Hillary Clinton to A-list celebrities like Sandra Bullock and Jessica Chastain. Oscar de la Renta died at 82 after a long battle with cancer, a family member confirmed to media sources. Born into the high society of Santo Domingo, Dominican Republic on July 22, 1932, de la Renta became known for swathing women in silk-taffeta and chiffon gowns that were praised as pieces of…