Geography of Poland today's modern Polish society. The ancestors of today's Poles, the Polanie, built their first fortresses on islands in these lakes. The legendary Prince Popiel ruled from Kruszwica tower erected on the Lake Gopło. The first historically documented ruler of Poland, Duke Mieszko I, had his palace on an island in the Warta River in Poznań. Nowadays the Polish lakes provide a location for the pursuit of water sports such as yachting and wind-surfing. The Polish Baltic coast is approximately long and extends from Świnoujście on the islands of Usedom and Wolin in the west to Krynica Morska on the Vistula
Ludmila (wife of Mieszko I Tanglefoot) Ludmila (wife of Mieszko I Tanglefoot) Ludmila (d. October 20 after 1210) was the wife of Mieszko I Tanglefoot. Her origins are disputed. Mieszko I Tanglefoot married Ludmila between 1170-1178. Given her name, scientists think that Ludmila came from Bohemia, a member of the Přemyslid dynasty, since this was one of the only families to have women in it called Ludmila. However researchers have different opinions. It was suggested that she was daughter of Otto III, Duke of Olomouc and his wife Durantia, probably the daughter of Mstislav I of Kiev by his second wife Liubava Dmitrievna. There was also