Assertion: nobility's family | /r/CapableOf | overthrow the pope
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text: The black nobility or black aristocracy (Italian: nobiltà nera, aristocrazia nera) are Roman aristocratic families who sided with the Papacy under Pope Pius IX after the Savoy family-led army of the Kingdom of Italy entered Rome on 20 September 1870, overthrew the Pope and the Papal States, and took over the Quirinal Palace, and any nobles subsequently ennobled by the Pope prior to the 1929 Lateran Treaty.