Palazzo Castiglioni is a historical mansion in the heart of the mountain top town of Cingoli, near Macerata, in the Marche, central Italy.
He was the first of the Marche branch of the family, who in the following centuries increased in power and prestige, becoming active participants in the towns life.
The most important members of the family are pope Urban II of the Burgundy branch (1093), pope Celestine IV (1241), Baldassarre Castiglioni (1478–1529) and finally Francesco Saverio Castiglioni who reigned as Pope for a short period and whom the current Marquis is named after.
It is the residence of a descendant of the family, the Francesco Saverio Castiglioni, who claims the title of Marquis.
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