Who dated Rudolf II, Holy Roman Emperor?

Rudolf II (18 July 1552 – 20 January 1612) was Holy Roman Emperor (1576–1612), King of Hungary and Croatia (as Rudolf I, 1572–1608), King of Bohemia (1575–1608/1611) and Archduke of Austria (1576–1608). He was a member of the House of Habsburg.

Rudolf's legacy has traditionally been viewed in three ways: an ineffectual ruler whose mistakes led directly to the Thirty Years' War; a great and influential patron of Northern Mannerist art; and an intellectual devotee of occult arts and learning which helped seed what would be called the Scientific Revolution. Determined to unify Christendom, he initiated the Long Turkish War (1593–1606) with the Ottoman Empire. Exhausted by war, his citizens in Hungary revolted in the Bocskai Uprising, which led to more authority being given to his brother Matthias. Under his reign, there was a policy of toleration towards Judaism.

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.