Hvem daterede Julius d'Austria?

Don Julius Caesar d'Austria (1584 or 1585—25 June 1609) was the oldest illegitimate son of Holy Roman Emperor Rudolf II and his long-term mistress, Catherina Strada. Don Julius had schizophrenia and died while he was serving a life sentence in prison after the murder of his lover Markéta Pichlerová in 1608.