Complex sentence: The first personal service Alba gave to King Philip II was to accompany him to England for his marriage to Mary Tudor; he was one of fifteen grandees of Spain who attended the ceremony in the abbey of Winchester on July 25,1554.
Split into simpler sentences: The first personal service Alba gave to King Philip II was to accompany him to England for his marriage to Mary Tudor. The Duke was one of fifteen grandees of Spain who attended the ceremony in the abbey of Winchester on July 25,1554.