Complex sentence: Fraunceys married Elizabeth Astlowe, daughter of Edward Astlowe, a member of the Royal College of Physicians and had one daughter Bridget, who married Sir William Goring, 1st Baronet.
Split into simpler sentences: Fraunceys married Elizabeth Astlowe, daughter of Edward Astlowe, a member of the Royal College of Physicians. He and Elizabeth had one daughter Bridget, who married Sir William Goring, 1st Baronet.