Question: Where did Józef Stanisław Poniatowski's father die?
Sentence (from "Józef Michał Poniatowski"): He was created the 1st "Conte di Monte Rotondo" on November 20, 1847, and the first "Principe di Monte Rotondo" on November 19, 1850 by Grand Duke of Tuscany Lepold II.
Relevant evidence: No