Arianna Carter[1] was born around 1770 and brought to Mount Vernon by Martha Custis, who married George Washington in 1759.
Martha Custis brought her 84 slaves which she had acquired from a previous marriage with her to Washington's Mount Vernon Estate.
George Washington Parke Custis and Mary Fitzhugh married in 1804 They had 4 children, but only one of them would survive into her adult life.
George Parke Custis also had other children with slaves that Martha had brought from her previous marriage.
George Washington Parke Custis always had what some considered a soft spot for Maria as she was allowed to marry in the Arlington house in 1821 to Charles Syphax.