A prowincja (Polish pronunciation: [prɔˈvint͡sja]; plural: prowincje) was the largest territorial subdivision in medieval and Renaissance-era Poland, and later in the Polish-Lithuanian Commonwealth. The term designated each of the two largest constituents of the state: depending on the period, including Wielkopolska (Greater Poland), Małopolska (Lesser Poland) and (upon the formation of the Commonwealth) the Grand Duchy of Lithuania. Ducal Prussia was often counted as part of the Greater Poland; Inflanty (Livonia) as part of the Grand Duchy of Lithuania, and the Ruthenian territories were split between Lesser Poland and the Grand Duchy.
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