Mattawoman was an 18th-century plantation on Mattawoman Creek in Charles County, Maryland, United States.
Mattawoman was the country estate of Colonel William Eilbeck, a wealthy planter and merchant, and his wife Sarah Edgar.[1] On 4 April 1750, Colonel Eilbeck's only child, 16-year-old Ann, married George Mason at Mattawoman.[2][3] Mason's father's plantation, where Mason spent several years of his childhood, adjoined Mattawoman.[1][2]
George Mason bequeathed Mattawoman and all his lands upon Chicamuxen and Mattawoman creeks to his son William Mason.[4] At age 23 in 1780, Mason's eldest son George Mason V inherited Mattawoman from his maternal grandmother, Sarah Eilbeck.[5] Mason inherited his father's properties upon his death in 1792.[4]