Jefferson sent for his youngest surviving child, nine-year-old Polly, in June 1787, who was accompanied on her voyage by a young slave from Monticello, Sally Hemings. Jefferson had taken her older brother James Hemings to Paris as part of his domestic staff, and had him trained in French cuisine. According to Sally's son, Madison Hemings, the 16-year-old Sally and Jefferson began a sexual relationship in Paris, where she became pregnant. According to his account, Hemings agreed to return to the United States only after Jefferson promised to free her children when they came of age.