A report on Greater Poland and History of Poland during the Piast dynasty

Poznań is a city on the River Warta in west-central Poland, within the Greater Poland region.

The city's full official name is Stołeczne Miasto Poznań (The Capital City of Poznań), in reference to its role as a centre of political power in the early Polish state under the Piast dynasty.

Unlike other historical parts of the country, such as Kujawy, Mazovia, Podlachia, Pomerania, or Greater Poland, Lesser Poland is mainly hilly, with Poland's highest peak, Rysy, located within the borders of the province.

In 1138, following the Testament of Bolesław III Krzywousty, the country was divided between his sons (see also Fragmentation of Poland).

The last will and testament of the Piast duke Bolesław III Wrymouth of Poland, established rules for governance of the Polish kingdom by his four surviving sons after his death.

the Seniorate Province (or Duchy of Kraków), composed of western Lesser Poland, the eastern parts of Greater Poland, western Kuyavia and the lands of Sieradz, assigned to Bolesław's eldest son and future High Duke Władysław II, as well as the lands of Łęczyca which were held by Bolesław's widow Salomea of Berg for life and to revert to the Seniorate Province upon her death;

The Duchy of Greater Poland was a district principality in Greater Poland that was a fiefdom of the Kingdom of Poland.

It was formed in 1138 from the territories of the Kingdom of Poland, following its fragmentation started by the testament of Bolesław III Wrymouth.

The Western Polans (also known as Polanes, Polanians; Polanie, derived from Old Slavic pole, "field" or "plain", from Proto-Indo-European *pleh₂- "flatland") were a West Slavic and Lechitic tribe, inhabiting the Warta River basin of the contemporary Greater Poland region starting in the 6th century.

The union led by the Piast dynasty developed into the Duchy of Poland, whose name derives from that of the Polans.

Situated on the Prosna river in the southeastern part of Greater Poland, the city forms a conurbation with the nearby towns of Ostrów Wielkopolski and Nowe Skalmierzyce.

One of the richest towns of Greater Poland, during the feudal fragmentation of Poland it formed a separate duchy ruled by a local branch of the Piast dynasty.

After the Union of Lublin (1569) Crown lands were divided into two provinces: Lesser Poland (Polish: Małopolska) and Greater Poland (Polish: Wielkopolska).

Despite being disfavored by the brief union of Angevin Poland and Hungary (the latter was still the country's overlord), Bogdan's successor Lațcu, the Moldavian ruler also likely allied himself with the Poles.

The West Pomeranian Voivodeship (Zachodniopomorskie) in Poland, stretching from the Oder–Neisse line to the Wieprza river, encompassing most of historical Pomerania in the narrow sense (as well as small parts of historic Greater Poland and Lubusz Land).

Starting in the 10th century, early Polish rulers subdued the region, successfully integrating the eastern part with Poland, while the western part fell under the suzerainty of Denmark and the Holy Roman Empire in the late 12th century.

In the middle of the 12th century, following the ill-thought testament of Bolesław III Krzywousty, his sons begun the process of fragmentation of Poland.

The Piotrków statute regulated the law in Greater Poland (Wielkopolska), and the Wiślica statute in Lesser Poland (Małopolska).