(274246) Reggiacaserta = 2008 OY9
Reggia Caserta is a former royal residence in southern Italy,
constructed for the Bourbon kings of Naples. It is one of the largest
palaces erected in Europe during the 18th century. The palace was designated
a World Heritage Site by UNESCO in 1997.
A complete set of naming citations of the numbered minor planets is available in the Dictionary of Minor Planet Names, edited by Lutz Schmadel.