| Conventional Long Name: | Królewiec Voivodeship |
| Common Name: | Królewiec |
| Subdivision: | Voivodeship |
| Nation: | the Kingdom of Poland |
| Year Start: | 1454 |
| Date Start: | April |
| Event1: | capitulation of Knipawa |
| Date Event1: | 14 February 1455 |
| Event End: | Second Peace of Thorn |
| Year End: | 1466 |
| Date End: | 19 October |
| Title Leader: | Voivode |
| Leader1: | Ścibor Bażyński |
| Year Leader1: | 1454–1455 |
| P1: | State of the Teutonic Order |
| Flag P1: | Flag of the State of the Teutonic Order.svg |
| S1: | State of the Teutonic Order |
| Flag S1: | Flag of the State of the Teutonic Order.svg |
| Capital: | Królewiec (de facto 1454–1455; de jure 1454–1466) Knipawa (de facto 1455) none (de facto 1455–1466) |
| Membership Title1: | Country |
| Membership1: | Crown of the Kingdom of Poland |
The Królewiec Voivodeship was a short-lived voivodeship of the Crown of the Kingdom of Poland, with capital in the city of Królewiec (now Kaliningrad, Russia), that existed during the Thirteen Years' War. It was established by king Casimir IV Jagiellon in April 1454, following the incorporation of the city and the surrounding area into Poland, from the territory of the State of the Teutonic Order.[1] [2] Following the capitulation of Polish forces in the battle of Kneiphof, on 14 February 1455, the voivodeship fall under the control of the Teutonic forces.[3] The voivodeship formally ceased to exists following the signing of the Second Peace of Thorn, on 19 October 1466, which affirmed its area under the ownership of the State of the Teutonic Order,[4] as a part and fief of Poland.[5]
The region was governed by the voivode. The only voivode of the voivodeship Ścibor Bażyński, who was in the office from April 1454 to 1455.[6] [7] The last mention of Ścibor, that refers to him as the voivode of Królewiec, comes from 12 April 1455.[7] Due to the ongoing fighting in the region during the Thirteen Years' War, and later its occupation, the voivodeship did not have an organized administration, nor appointed the new voivode after 1455.[6]