Complex sentence: Her paternal grandparents were Sir Adam de Welles, 3rd Lord Welles and Margaret Bardolf, and her maternal grandparents were William de Ros, 2nd Lord Ros and Margery Badlesmere eldest daughter of Bartholmew de Badlesmere, 1st Lord Badlesmere and Margaret de Clare.
Split into simpler sentences: Her paternal grandparents were Sir Adam de Welles, 3rd Lord Welles and Margaret Bardolf. Her maternal grandparents were William de Ros, 2nd Lord Ros and Margery Badlesmere eldest daughter of Bartholmew de Badlesmere, 1st Lord Badlesmere and Margaret de Clare.