Catalina Micaela conceived quickly and gave birth to Philip Emmanuel on 2 April 1586.

Following the birth of his brother Victor Amadeus in 1587, Philip Emmanuel was baptised with him in Turin and educated in his parents' court in his early years.

After signing the Treaty of Lyon in 1601 with Henry IV of France, Charles Emmanuel I aimed to improve his relations with his brother-in-law Philip III of Spain.

After arriving in Spain, Tomás Fernández de Medrano began his role as their Secretary of State and War in 1603.

[1] Philip Emmanuel died in Valladolid on 9 February 1605, as a result of smallpox, which was common at the time.