BORGHESE, a noble Sienese family, one of whom, being elected pope in 1605, assumed the name of Paulo V., after which the family became among the most powerful of the Roman nobility by their union with the Aldobrandini. The late prince in 1803 married Pauline, sister of the Emperor Napoleon, and widow of General Leclerc. This prince sold to his imperial brother-in-law the noble Borghese collection of antiquities for 13,000,000 francs.