The Royal Castle in Warsaw () is a castle residency and was the official residence of the Polish monarchs. It is located in the Castle Square, at the entrance to the Warsaw Old Town. The personal offices of the king and the administrative offices of the Royal Court of Poland were located there from the 16th century until the Partitions of Poland. In its long history the Royal Castle was repeatedly devastated and plundered by Swedish, Brandenburgian, German, and Russian armies.