Don John of Austria was the illegitimate son of Charles V, Holy Roman Emperor. Charles V met his son only once, recognizing him in a codicil to his will. John became a military leader in the service of his half-brother, King Philip II of Spain, Charles V's heir, and is best known for his role as the admiral of the Holy League fleet at the Battle of Lepanto.
Don Juan de Austria, oil in canvas of 2nd half of the 16th century, probably by Juan Pantoja de la Cruz, in the Museo del Prado, Madrid
Portrait of Don Juan by Jooris van der Straeten
John of Austria in armour, by Alonso Sánchez Coello, 1567
Battle of Lepanto
Philip II, also known as Philip the Prudent, was King of Spain from 1556, King of Portugal from 1580, and King of Naples and Sicily from 1554 until his death in 1598. He was also jure uxoris King of England and Ireland from his marriage to Queen Mary I in 1554 until her death in 1558. He was also Duke of Milan from 1540. From 1555, he was Lord of the Seventeen Provinces of the Netherlands.
Portrait by Sofonisba Anguissola (1565)
The Baptism of Philip II in Valladolid, Castile. Historical ceiling preserved in Palacio de Pimentel (Valladolid)
Philip, in the prime of his life, by Anthonis Mor
Philip II wearing the order of the garter by Jooris van der Straeten, c. 1554