Troja became part of Prague in 1922. Now it is part of the district of Prague 7 and its own cadastral area.
The area is 3.36 km2, the population is 1,272 and the population density is 379 inhabitants / km2.
Troja is the site of Troja Palace, Prague Zoo and the Botanical Garden of Prague.In Troja are also Vineyards.
Wikipedia https://en.wikipedia.org/wiki/Troja_(Prague)
Coordinates 50°7'8.599" N 14°25'20.239" E