Maria Monroe Gouverneur (1802-1850) was Monroe’s youngest child, born on April 8, 1802. She attended Madame Grelaud’s School in Philadelphia from 1816-1819, and married her cousin Samuel L. Gouverneur (1798–1865) in a ceremony at the White House in 1820. They resided in New York City, and had three surviving children, James Monroe Gouverneur (born 19 August 1822), Elizabeth Kortright Gouverneur and Samuel Lawrence Gouverneur, Jr. Their first child, a daughter, died on 4 September 1821.