Named after Schloss Monbijou, a palace that once stood nearby.
‘Mon bijou’ is French for ‘my jewel’. The palace was built in 1703 by Eosander von Göthe as a pleasure house between the Spree and Oranienburger Straße, and later enlarged; from 1877 it housed the Hohenzollern Museum. Damaged in the Second World War, it was demolished in 1959, and the Monbijoupark took its place. The small triangular square has had its name since 1764.