Trojden Ier de Czersk

Trojden Ier de Czersk (in Polish Trojden I Czerski ) (v. 1285 - March 13rd 1341), of the Dynasty of the Piasts, is duke of Czersk (starting from 1310). In 1313, its Duché increases areas of Warsaw and Liw. Of 1336 with 1340, it is also Régent duchy of Płock.

Trojden Ier de Czersk is the second wire of Boleslas II of Mazovie and his first wife, Sophie, the girl of the large-duke Treniota of Lithuania.

In 1310, still from living of his/her father, Trojden receives the small area of Czersk. When his/her father dies in 1313, he inherits the areas of Warsaw and Liw which come to be added to its duchy, which makes it possible Trojden to reign on all the Eastern Mazovie.

At the beginning, Trojden maintains excellent relations with Ladislas I {{er}} the Brief, the sovereign of Poland. Thanks to its intervention, towards 1310, it marries Marie, the girl of Georges Ier, the sovereign of the Rus' de Halych-Volodymyr. When the dynasty resulting from Roman of Halicz dies out in 1323, following the death of the two heirs to the throne who faced the Tatar S, Ladislas supports successfully Boleslas, the son of Trojden, which seizes the throne and takes the name of Georges II ( Jerzy II ) to direct this orthodoxe country .

The aggressive policy followed by Ladislas the Brief to reunify the territories Polish threat Mazovie. The January 2nd 1326, with Brodnica, the dukes mazoviens (Trojden Ier de Czersk, Siemovit II of Rawa and Wacław de Płock) conclude an agreement with the teutonic Chevaliers, which leads to a conflict of short duration with the Poland and its Lithuanian ally .

The years which follow, Trojden and his/her brothers waver between Poland and the Order teutonic. Thus in 1329, they militarily support Ladislas the Brief, whereas in 1334, they are combined in Teutoniques. In 1339, Trojden again turns to Poland, directed then by Casimir III Large the. The role of buffer state played by Mazovie appears clearly when the lawsuit opposing Teutoniques to the Poles on their different frontier proceeds in Warsaw. For reasons which are unknown for us, no duke mazovien testifies at the time of this lawsuit.

In 1340, his/her oldest son Boleslas (alias Georges II) is assassinated by his subjects. Trojden gives up its right to succeed his/her son in exchange of a large amount of money which Casimir III pays to him the Large one.

Trojden Ier de Czersk dies the March 13rd 1341 and is buried in the church Dominicains of Rawa. Of its marriage with Marie de Halicz, it had three wire (Boleslas, Siemovit and Casimir) and a girl (Euphémie, who married Casimir I {{er}} of Cieszyn in 1321).

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