Olsztyn Olsztyn – City Model Olsztyn September 20, 2018 admin In the city’s market square there is a 3D plan of how Olsztyn used to look, and it was created in 2013 to mark 660 years since the settlement was founded. Olsztyn was initially known as Allenstein when it was founded in 1353 by the Teutonic Knights. Share this:Share Click to share on Facebook (Opens in new window) Facebook Click to share on WhatsApp (Opens in new window) WhatsApp Click to share on X (Opens in new window) X Click to share on Pinterest (Opens in new window) Pinterest