Marriage and children
Richard married Elizabeth Collins (c. 1768–1858) in 1794, at her parents' home in Germantown, PA. Elizabeth was the daughter of Philadelphia Quaker merchant Stephen Collins and Mary Parrish, and the sister of Zaccheus Collins, a prominent botanist. Her lifelong friend was Dolley Payne Todd Madison.
Mary Ann Lee born May 11, 1795, died June 21, 1796, of dysentery. Buried at Sully in unmarked grave.
Col. Richard Bland Lee II born July 20, 1797, died August 2, 1875. Married Julia Anna Marion Prosser (1806–1882), daughter of John Prosser and Mary "Polly" Poole. Both buried at Ivy Hill Cemetery, Alexandria, Va.
Ann Matilda Lee born July 13, 1799, died December 20, 1880. Married Dr. Baily Washington III (1787–1854).
Mary Collins Lee born May 6, 1801, died February 22, 1805. Buried at Sully in unmarked grave.
Laura Lee born May 10, 1803, died in infancy.
Cornelia Lee born March 20, 1804, died December 26, 1876. Married Dr. James W. F. Marcrae.
Hon. Zaccheus Collins Lee born December 5, 1805, died November 1859 in Baltimore, MD; Served as U.S. District Attorney from 1848 to 1855. Married Martha Jenkins.
Male Infant born April 15, 1807, died April 15, 1807.
Male Infant stillborn June 11, 1809.