Рудольф II
Vianen was born in Utrecht. According to the RKD he travelled to Italy and only moved to Prague in the last decade of his life, but for that reason he is known as a member of the "Prague school of art" under Rudolf II, Holy Roman Emperor. He was the son of Willem van Vianen, brother of Adam van Vianen, the father of Paulus II, and the uncle of Adam II and his brother Christian van Vianen.