Complex sentence: After travelling with the boy, he settled with his family in Holland, first at the Hague, then, to save money, at Wesel, in 1707; there he began his great work, "L'Histoire d'Angleterre".
Split into simpler sentences: After travelling with the boy, he settled with his family in Holland, first at the Hague, then, to save money, at Wesel, in 1707. It was at Wesel that he began his great work, "L'Histoire d'Angleterre".