Rex Rusiae
The Victory of Premysl Ottokar
In 1276 Rudolph of Habsburgs placed Ottokar under the ban of the empire and besieged Vienna. This compelled Ottokar in November 1276 to sign a new treaty by which he gave up all claims to Austria and the neighbouring duchies, retaining for himself only Bohemia and Moravia. Ottokar's son Wenceslaus was also betrothed to Rudolph's daughter Judith. It was an uneasy peace. Two years later, the Bohemian king tried to recover his lost lands by force. Ottokar found allies and collected a large army, he was able to defeat the Habsburgs due to the Bohemian armies arriving before the Hungarian assistance came, he was crowned as Ottokar I the Holy Roman Emperor, in this time Ottokar was able to build good relations with the Polish dukes and the rulers in Austria as well until he died in 1289, after this point the Holy Roman Emperor is Adolf of Nassau.
In 1287, Leszek the Black and Agrippina of Slavonia fled to Hungary after the attack of the Mongols, Agrippina of Slavonia blamed Leszek for her failed marriage with him and she said that her sister's marriage to Premysl Ottokar produced many children but they did not have any children, Leszek the Black told his wife Gryfina to forgive him for having a failed marriage, the two came back to a Poland that is fragmented and raided by the Mongols, Agrippina of Slavonia gives birth to a son on January 4, 1288 named Casimir.
On 1288, Leszek II the Black dies leaving the ducal throne of Krakow to his minor son in the regency of Agrippina of Slavonia.
In the late 1289, Henry IV, the Duke of Silesia decided to strengthen his rule in Silesia, and instead of focusing on getting the Polish throne he focused on strengthening his rule in Silesia rather than to focus on establishing him as the King of Poland.
Matilda of Brandenburg, the wife of Henry IV the Duke of Silesia-Wroclaw gives birth on October 5, 1290 and names their son Henryk.
The Children of Matilda of Brandenburg and Henryk IV, Duke of Silesia-Wroclaw
Henryk of Silesia b.1290
Kunigunde of Silesia b. 1296
Henry IV the Highduke of Poland finds about the the allegience of Henry the Fat to Wenceslaus II of Bohemia and wanted him arrested immediately and because of that Henry IV the Highduke of Poland was furious and had him arrested and executed and annexed the lands of Henry IV the Fat, he allied with Przemysl II of Greater Poland, and with Przemysl II of Greater Poland and Boleslaw II of Mazovia they proclaim allegiance with the regency of Agrippina of Slavonia.
In 1296, Przemysl II was kidnapped by men of the electors of Brandenburg, with some help from the Polish noble families of Nałęcz and Zaremba, and murdered on February 8 in Rogoźno by Jakub Kaszuba, after his death, Richeza of Greater Poland is pledged to marry Casimir III, High Duke of Poland.