Pope Benedict XV was the godfather of Grand Duke Jean of Luxembourg.
Grand Duchess Charlotte of Luxembourg was godmother of Grand Duchess Josephine-Charlotte.
Infanta Elena Maria, Isabel, Dominica de Silos de Borbon y Grecia
Her godparents were her paternal grandmother, Maria de las Mercedes de Borbon y Orleans, the Countess of Barcelona, and His Royal Highness Alfonso de Orleans y Borbon.
Infanta Cristina, Federica de Borbon y Grecia
Her godparents were Don Alfonso de Borbon, the Duke of Cadiz, and her Royal Highness Cristina de Borbon y Battemberg.
Prince Felipe de Borbon y Grecia
His godparents were His Royal Highness the Count of Barcelona, Juan de Borbon, and his great-grandmother, Queen Victoria Eugenia.
Andrea Albert Pierre Casiraghi
His godparents were his aunt Stephanie (Princess Caroline's sister) and his uncle Marco Casiraghi (Stefano's brother).
Pierre Rainier Stephano Casiraghi
His godparents are his uncle Prince Albert of Monaco, and his paternal aunt Laura, wife of his uncle Daniele Casiraghi and mother of cousin Fernanda.
Princesse Caroline de Monaco
Her godparents were the then 10-year-old Margaret David (1st cousin) and Seine Durchlaucht Georg 3. Fürst Festetics de Tolna, whose father is a half-brother of Caroline's great-grandfather Son Altesse Sérénissime Louis II Prince Souverain de Monaco.
Princess Irene of Greece
The South African leader, General Smuts, was her Godfather. (I don't know if she has more.)