Complex sentence: Caroline Eden was the daughter of Charles Calvert, 5th Baron Baltimore, sister of Frederick Calvert, 6th Baron Baltimore, and wife of Maryland's last colonial governor, Robert Eden (1741--1784).
Split into simpler sentences: Caroline Eden was the daughter of Charles Calvert, 5th Baron Baltimore, sister of Frederick Calvert, 6th Baron Baltimore. She was the wife of Maryland's last colonial governor, Robert Eden (1741--1784).