 He moved to England and spent the most productive decades of his working career there, providing monuments, portraits and replicas of classical antiquities for the court of Charles I, where his main rival was Francesco Fanelli.Henry Peacham was informed that Le Sueur was a pupil of Giambologna in Florence.Though he is not otherwise documented in Florence, in Paris he was recorded as "sculpteur du Roy" at the baptism of his son at Saint-Germain l'Auxerrois in 1610, when a royal secretary and the daughter of another served as witnesses.