Complex sentence: Mann was married to Myra Maislin; they had one child together, Abigail Mann and Myra had two children from a previous marriage, Adrienne Cohen Isom and Aaron Cohen, a former Israeli Special Forces operative.
Split into simpler sentences: Mann was married to Myra Maislin; they had one child together, Abigail Mann. His wife had two children from a previous marriage, Adrienne Cohen Isom and Aaron Cohen, a former Israeli Special Forces operative.