William, the elder son of Sir James Anstruther, accompanied Sir James to London following the Union of the Crowns in 1603 where he was made a Knight of the Order of the Bath.
William, o fillo maior de Sir James Anstruther, acompañou a Sir James a Londres de acordo coa Unión das Coroas de 1603, na que el foi armado Cabaleiro da Orde do Baño.