Birger Jarl

, also known as Birger Magnusson (c. 1210 –  October 21, 1266) was a Swedish statesman, a member of the House of Bjelbo, who played a pivotal role in the consolidation of Sweden while a jarl from 1248 until his death. In addition, he is traditionally attributed to have founded the Swedish capital, Stockholm, around 1250, and several historical structures there are still named after him — including the street Birger Jarlsgatan (on Norrmalm); the tower Birger Jarls Torn and the square Birger Jarls Torg (both on Riddarholmen).
See more at Wikipedia.org...