Complex sentence: He is the husband of Grammy Award-winning singer and songwriter Cyndi Lauper, whom he married in 1991 and they have one son together, Declyn Wallace (b.1997).
Split into simpler sentences: He is the husband of Grammy Award-winning singer and songwriter Cyndi Lauper. Thornton married singer Cyndi Lauper in 1991 and the couple have a son together, Declyn Wallace (b.1997).