Complex sentence: Her paternal grandparents were the Pontian Greek Roman Senator and Peripatetic Philosopher, Gnaeus Claudius Severus and his second wife the Roman Princess Annia Aurelia Galeria Faustina, while her maternal grandparents were wealthy Roman heiress Ummidia Cornificia Faustina and an unnamed Roman Senator.
Split into simpler sentences: Her paternal grandparents were the Pontian Greek Roman Senator and Peripatetic Philosopher, Gnaeus Claudius Severus and his second wife, the Roman Princess Annia Aurelia Galeria Faustina. Her maternal grandparents were wealthy Roman heiress Ummidia Cornificia Faustina and an unnamed Roman Senator.