History /
Ancient Polish History thread [180]
I will add more later...
After Władysław Herman had died, the country was divided between his sons Zbigniew and Bolesław. Bolesław III Krzywousty in 1107 united the country and expelled his brother Zbigniew. German king Henry V stood in defense of Zbigniew and in 1109 invaded Poland but was defeated. Zbigniew came back to Poland but on his brother's order was blinded and soon later died. He managed to again conquer all the previously conquered territories, held for a short time, including Pomerania. In 1129 made an aliance with Danmark. He died in 1138. Before his death he divided the country between his sons in this way trying to prevent them from fighting one another. The country was divided into 5 regions. 4 for each of his sons and 5th for the oldest of them, who was going to be the representative of the whole of Poland.
This is the end of early Piasts period. Next is fragmentation.

Bolesław III Krzywousty (1085-1138)