[Outline biography of a forgotten Polish doctor from Estonia].

The paper presents the figure of Polish doctor Władysław Wawrzyniec Mierzejewski who was born in 1841 in the province of Witebsk. He studied medicine in Petersburg. After graduation in the field of gynecology followed by the achievement of MD, he moved to the city of Kuressaare on the Saaremaa Island in 1876. That year he established a natural therapy clinic there and treated female patients from Petersburg, Tallin and Dorpat. The clinic was taken over by his son Gonzaga George Mierzejewski, a gynecologist himself. The clinic was destroyed during II World War in 1941. At present, the former location of the balneology clinic is commemorated with a stone with a plate for the memory of Polish doctors.