Catalina Micaela of Spain was Duchess of Savoy by marriage to Charles Emmanuel I, Duke of Savoy. She ruled the duchy several times as regent in Charles Emmanuel's absence, notably during his campaign
Portrait by Alonso Sánchez Coello (between 1582 and 1585)
Catalina and her elder sister Isabella in a 1570 portrait by Sofonisba Anguissola
Portrait of Duchess Catalina by Juan Pantoja de la Cruz, c. 1585
Diego, Prince of Asturias and Portugal was the fourth son of Philip II of Spain and his third son by his fourth wife, Anna of Austria.
Portrait of Prince Diego aged 2 by Sánchez Coello, c. 1577
The birth of Ferdinand, Prince of Asturias, Diego's elder brother