Stara Miłosna is the oldest estate in Wesoła. Its documented history goes back to the 14th century. Stara Miłosna was the szlachta's village. Firstly, the name was "Milosina", later "Miłośnia", "Miłośna" and finally "Miłosna". Through Miłosna runs a route, through which cattle was driven, and through which Warsaw was supplied. Many inns and 'mail' buildings were near the route. In the first half of 19th century, the owner of the majority of the area was prince Franciszek Ksawery Drucki-Lubecki, who was then chancellor of the exchequer. He had a palace there, which was destroyed during Battle of Olszynka Grochowska, in 1831. After this, Miłosna was owned by the Rychłowski family. In the 19th and 20th centuries the Miłosna area got parcelled out. In the "Słownik Geograficzny Królestwa Polskiego" (English: "Geographic Dictionary of Kingdom of Poland") it stated that in Miłosna was a few folwarks (Miłosna, Borków, Kaczydół and Żurawka), nomenclatures (Pohulanka, Janówek and Zakręt) and one village Zakręt.