Complex sentence: He was the subject of a 1987 portrait, "Portrait of José Capelo" and Triptych 1991 by Bacon, and was given paintings and US $4 million by Bacon, something the painter would regret prior to his death in 1992.
Split into simpler sentences: He was the subject of a 1987 portrait, "Portrait of José Capelo" and Triptych 1991. Capelo was given paintings and US $4 million by the artist, something Bacon would later confide he regretted doing, before his death in 1992.