In 1631 the Cavendish family requested his services again and he returned from Paris to become tutor to the third Earl of Devonshire, a position he held from 1631 to 1642.
Sa 1631 ng II hiniling ng pamilya ng kanyang mga serbisyo muli at ibabalik siya sa Paris upang maging tagapagturo sa ikatlong Earl of Devonshire, isang posisyon na hawak niya mula 1631-1642.