Joachim Ignacy Lelewel (1786-1861) was a Polish historian, geographer and political activist. He published a number of multi-volume historical works. Regarding Atlantis he also published a map(a) in 1831 which located Plato’s Island in the Atlantic directly west of the Strait of Gibraltar. While the map only shows lines of latitude, its longitudinal orientation is rather askew. Although it includes a distorted Britain it completely omits Ireland!
However, Lelewel considered Atlantis to be an invention inspired by the ancient stories of the Isles of the Blessed.