Poland is divided into two provinces at…

Poland is divided into two provinces at the death of Prince Wladyslaw I Herman on June 14, 1102, each administered by one of the late prince’s sons.

The extent of each province closely resembles the provinces that the princes had been granted by their father three years earlier, the only difference being that Zbigniew also controls Mazovia with its capital at lock, effectively ruling the northern part of the kingdom, while his younger half-brother Boleslaw rules its southern portion.

In this way, two virtually separate Polish states are created.

They conduct separate policies internally as well as externally.

They each seek alliances, and sometimes they are enemies of one another.

Such is the case with Pomerania, towards which Boleslaw directs his ambitions.

Zbigniew, whose country borders Pomerania, wishes to maintain good relations with his northern neighbor.

Boleslaw, eager to expand his dominion, organizes several raids into Pomerania and Prussia.