Complex sentence: She and her sister, Verena-Hildegarde, attended a boarding school in Riedenburg; she continued her education at the Sacred Heart Church on the Isle of Wight, in Great-Britain.
Split into simpler sentences: She and her sister, Verena-Hildegarde, attended a boarding school in Riedenburg. She continued her education at the Sacred Heart Church on the Isle of Wight, in Great-Britain.