Complex sentence: He married Donna Maria-Sofia Granito Pignatelli di Belmonte, younger daughter of the Prince di Belmonte, on 17 May 2003, and their first child, Robert Frederick Angelo, was born on 7 January 2007.
Split into simpler sentences: He married Donna Maria-Sofia Granito Pignatelli di Belmonte, younger daughter of the Prince di Belmonte, on 17 May 2003. Their son, Robert Frederick Angelo, was born on 7 January 2007.