Van wie was Keizer Rudolf II?

Keizer Rudolf II (Wenen, 18 juli 1552 — Praag, 20 januari 1612), aartshertog van Oostenrijk als Rudolf V (1576 - 1608), was keizer van het Heilige Roomse Rijk. Hij was een zoon van keizer Maximiliaan II en Maria van Spanje en bleef vrijgezel.

Kateřina Stradová also known as Anna Marie Stradová and Catherina Strada (c. 1568-1629), was the mistress of Rudolf II, Holy Roman Emperor, with whom she had six children.

Kateřina Stradová was the daughter of the painter Ottavio Strada the Elder, the sister of the painter Ottavio Strada the Younger, and the grand-daughter of the dealer and courtier Jacopo Strada. She became the mistress of Rudolf II at about the age of fifteen. She was given the title of countess. They had six children, but only their eldest son is well attested in historical records. She was given the title of countess and is described as bright and attentive, educated in Vienna, and was said to have fine and gracious features.