Complex sentence: Clara's paternal grandparents were Ludovico II Gonzaga and Barbara of Brandenburg; and her maternal grandparents were Albert III, Duke of Bavaria and Anna of Brunswick-Grubenhagen-Einbeck, daughter of Duke Erich I of Brunswick-Salzderhelden and Elisabeth of Brunswick-Gottingen.
Split into simpler sentences: Clara's paternal grandparents were Ludovico II Gonzaga and Barbara of Brandenburg. Her maternal grandparents were Albert III, Duke of Bavaria and Anna of Brunswick-Grubenhagen-Einbeck, daughter of Duke Erich I of Brunswick-Salzderhelden and Elisabeth of Brunswick-Gottingen.