The Siege of Pskov took place during the final stage of a war that fought for control of what area?
Livonian War The Livonian War (1558–1583) was fought for control of Old Livonia (in the territory of present-day Estonia and Latvia), when the Tsardom of Russia faced a varying coalition of Denmark–Norway, the Kingdom of Sweden, and the Union (later Commonwealth) of the Grand Duchy of Lithuania and the Kingdom of Poland.
Siege of Thessalonica (617) The Siege of Thessalonica in 617 or 618 was an unsuccessful siege of the city of Thessalonica, the major Byzantine stronghold in the region, by the Avars and the Slavic tribes ("Sclaveni") who had settled in the city's vicinity. The attack was the last and best-organized attempt by the Avars to take the city. It lasted for 33 days and involved the use of siege engines, but in the end failed. The main source for these events are the "Miracles of Saint Demetrius", named after Thessalonica's patron saint, Saint Demetrius.