(1) He is married to Catherine Michelle [Spanje] von Habsburg.
They got married on March 11, 1585 at Zaragoza, Aragón, Spain, he was 23 years old.
Child(ren):
(2) He is married to Marguerite de Roussilon.
They got married
Child(ren):
http://en.wikipedia.org/wiki/Charles_Emmanuel_I,_Duke_of_Savoy
After the death of his wife, he never remarried but was father to another eleven illegitimate children from 1600 onwards by the following mistresses, Luisa de Duing, Argentina Provana, Catherine de Roussillon (mother of Margherita di Savoia who was an ancestor of Maria Teresa Cybo-Malaspina), Virginia Pallavicino, Anna Caterina Meraviglia and Anna Felizita Cusa.
The data shown has no sources.