OTL reunification which resulted in Władysław Łokietek on the throne (he had insane amount of luck, but was was good for him wasn't necessarily good for the Kingdom) was far from optimal and ended with significant territorial loses.
Challenge is to restore Poland in better shape after period of fragmentation with PoD no earlier than battle of Legnica (1241).
My take:
1) Reduce number of Silesian Piast. There were too many of them. Lets say, that Konrad, son of Henry the Pious, joined clergy like it was intended and became bishop of Passau.
2) Bolesław V is not the Chaste. Lesser Poland, unlike Greater Poland, Mazovia or Silesia failed to develop its own Piast line as rulers of Kraków either were deposed, died childless or left underaged sons. If Bolesław V left issue, succession in Kraków should be less chaotic.
So lets say Bolesław has kids with Kinga of Hungary, born around 1250
-son (Leszek) married to daughter of Przemysł I of Poznań.
-daughter (Salomea) married to Henryk Brzuchaty/Henry the Fat of Silesia
Przemysł II dies without sons around 1300 (from natural cases or accident, not from assassination) so Leszek II of Kraków, as his sister's husband, succeedes him, Leszek rules Lesser and Greater Poland + Pomerelia and is backed by archbishop of Gniezno Jakub Świnka, big supporter of reunification. Leszek's sons happen to predecease him and thus he is in turn succeeded by nephew, son of Salomea and Henry the Fat (*Bolesław VI*) who should control most of Silesia at the time (to strenghten his claim to Greater Poland Bolesław VI could marry Przemysł II's daughter).
It leaves Mazovia and Cuiavia, but with richest and most populous provinces under his direct control Bolesław VI should easily subjugate poor Mazovian cousins.
@Zygmunt Stary
Challenge is to restore Poland in better shape after period of fragmentation with PoD no earlier than battle of Legnica (1241).
My take:
1) Reduce number of Silesian Piast. There were too many of them. Lets say, that Konrad, son of Henry the Pious, joined clergy like it was intended and became bishop of Passau.
2) Bolesław V is not the Chaste. Lesser Poland, unlike Greater Poland, Mazovia or Silesia failed to develop its own Piast line as rulers of Kraków either were deposed, died childless or left underaged sons. If Bolesław V left issue, succession in Kraków should be less chaotic.
So lets say Bolesław has kids with Kinga of Hungary, born around 1250
-son (Leszek) married to daughter of Przemysł I of Poznań.
-daughter (Salomea) married to Henryk Brzuchaty/Henry the Fat of Silesia
Przemysł II dies without sons around 1300 (from natural cases or accident, not from assassination) so Leszek II of Kraków, as his sister's husband, succeedes him, Leszek rules Lesser and Greater Poland + Pomerelia and is backed by archbishop of Gniezno Jakub Świnka, big supporter of reunification. Leszek's sons happen to predecease him and thus he is in turn succeeded by nephew, son of Salomea and Henry the Fat (*Bolesław VI*) who should control most of Silesia at the time (to strenghten his claim to Greater Poland Bolesław VI could marry Przemysł II's daughter).
It leaves Mazovia and Cuiavia, but with richest and most populous provinces under his direct control Bolesław VI should easily subjugate poor Mazovian cousins.
@Zygmunt Stary