Masovia
Masovia (Polish: Mazowsze) is situated in central Poland.
Masovia was conquered probably by Mieszko I in the 10th century.
During the chaos following the death of Mieszko II in 1033 and the subsequent invasion of the Czechs, it split temporarily from Poland under an independent ruler. It was then reunited with Poland by Casimir I of Poland with help from Rusin units. After death of Boleslaw III of Poland, Masovia was under its own dukes from the Piast dynasty, and was incorporated into Polish kingdom in 15th and 16th century, with last territory incorporated in 1526
History
Also a name of an early 8-bit character encoding, based on CP 850 with some characters replaced by Polish diacritics.
