Complex sentence: Another daughter of Gilbert Livingston named Margaret Livingston married Peter Stuyvesant also a great-grandson of Peter Stuyvesant; their son Nicholas William Stuyvesant married Catherine Livingston Reade-also a great-granddaugther of Gilbert Livingston.
Split into simpler sentences: Another daughter of Gilbert Livingston named Margaret Livingston married Peter Stuyvesant also a great-grandson of Peter Stuyvesant. Their son Nicholas William Stuyvesant married Catherine Livingston Reade-also a great-granddaugther of Gilbert Livingston.