Who was the mother of the emperor that issued the Robot Patent?
Robot Patent: The Robot Patent is an English-language scholarly term for the imperial decrees (patents) in the 1700s abolishing compulsory labor (robot) of serfs, issued by Joseph II, Holy Roman Emperor, who had carried out a register of all land with a division between peasant and noble holdings. Joseph II, Holy Roman Emperor:  He was the eldest son of Empress Maria Theresa and her husband, Emperor Francis I, and was the brother of Marie Antoinette.
Empress Maria Theresa