I was trying to find the thread about drivers who won their final race, as I was trying to see if Conelli had any races after he co-drove to the Belgian GP win with "Williams". Can't find any.
And I can't find any real info out about the Count.
Yet he seems to have been quite some driver. Especially at the Targa Florio. Everyone remembers Junek's drive in the 1928 race, but Conelli was only a matter of seconds behind Campari in 3rd place. Campari's reputation is high, so for Conelli to get so close, in a private Bugatti, must have taken some talent. And a couple of years later he DID beat Campari, as well as Nuvolari, although the race was of course famous for Varzi's hot (literally) duel with Chiron for first.
He seems to have been racing since about 1920, winning the Aosta race, and after cyclecar races was trusted enough to take part in record attempts for Sunbeam before Bugatti took him on as a works driver in between his privateering. In 1927 he scored the best non-Delage result in a Grand Prix that year, getting between Benoist and Bourlier for Bugatti, and teamed with "Williams" in the 1931 season, culminating in that Belgian GP win. Perhaps at this very peak he retired, thus joining an elite band that truly retired as winners?
Wikipedia has him dying in 1974, just before his 85th birthday, so there ought to be info around about him, but the best I can find is that the family Conelli de Prosperi seems to have had Sardinian links and a Torinese palace in which Garibaldi lived. For a Grand Prix winner who was around for a number of years, he seems remarkably obscure. Reflection of the times?
Oh, and he seems to have worn a bow-tie whilst racing.
Not in the top rank of drivers, but perhaps a safe, consistent pair of hands. And maybe Bugatti was dunning him for some funding? Seems to have been from a rich family.