Complex sentence: Aliki had two sisters, Nada Diplarakos who married the French Diplomat André Rodocanachi, and Cristina Diplarakos, who was married to Henri Claudel, the third of Paul Claudel's five children.
Split into simpler sentences: Aliki had two sisters, Nada Diplarakos who married the French diplomat André Rodocanachi, and Cristina Diplarakos. Cristina was married to Henri Claudel, the third of Paul Claudel's five children.