 During the interwar period, when Vilnius was under Polish control, the southern part of "Žvejai" was known as "Pióromont"; the entire "Žvejai" area was referred to as "Rybaki" (Polish for "Fishermen"); modern "Šiaurės miestelis" had been called "Plac broni" (Polish for the "Military training ground"); and the old placename of "Derewnictwo", dating back to the times of the Polish-Lithuanian Commonwealth, applied to the area north of Tuskulėnai Manor.A map of Vilnius published in 1942, while the city was under Nazi rule, shows the northern part of Žirmūnai as "Paneriškės", the middle section as "Kareiviškės" ("place of soldiers") and the southern part, close to the Tuskulėnai Manor, as "Mantiškės" ("a place named in honour of Mantas").One of the streets in the area, "Enriko Manto" Street, referred to Herkus Mantas (Herkus Monte), a hero of the Great Prussian Uprising; today "H. Manto" Street is a short street in the Šnipiškės elderate ending at the boundary of Žirmūnai.