Editing Boleslaus I, Duke of Bohemia (section)

=== Military Conquests ===
[[File:Český stát v X. století za Boleslava I. a II.jpg|thumb|250px|Expansion of the Bohemian state during the reign of Boleslaus I and Boleslaus II]]
Five years after the war with Otto, Boleslaus and the armies of the Bohemians and Franks allied against the Magyars in the victorious [[Battle of Lechfeld]]. After the battle, the remainder of the huge Magyar army turned to Bohemia, where it was crushed by Boleslaus. He had also helped Otto to crush an uprising of [[Polabian Slavs|Slavic]] tribes led by the [[Obotrites|Obotrite]] princes [[Nako (Obotrite prince)|Nakon]] and [[Stoigniew|Stojgněv]] on the Lower [[Elbe]] river in the [[Battle on the Raxa]].<ref>{{Cite web |date=2007-05-26 |title=Boje polabských Slovanů za nezávislost v letech 928 – 955 |url=https://www.e-stredovek.cz/post/boje-polabskych-slovanu-za-nezavislost-v-letech-928-955/ |access-date=2024-12-10 |website=www.e-stredovek.cz |language=cs}}</ref> The defeat of the invading Hungarians brought the same benefits to both Franks and Bohemians. Less obvious is what Boleslaus expected to gain from his participation in Otto's war against the Obotrite princes in the far north. He probably wanted to ensure that his powerful Frankish neighbors did not interfere with him in expanding the Bohemian territories to the east.<ref name=":4">{{Cite journal |last=Štefan |first=Ivo |last2=Stránská |first2=Petra |last3=Vondrová |first3=Hana |date=2016 |title=The archaeology of early medieval violence: the mass grave at Budeč, Czech Republic |url=https://www.cambridge.org/core/product/identifier/S0003598X16000296/type/journal_article |journal=Antiquity |language=en |volume=90 |issue=351 |pages=759–776 |doi=10.15184/aqy.2016.29 |issn=0003-598X}}</ref> As a result of the victory, Boleslaus freed the [[Moravia]]n lands from Magyar raids and expanded his territory, which in turn was later conquered by [[History of Poland during the Piast dynasty|Polish]] dukes and became known as [[Upper Silesia]] and [[Lesser Poland]]. By occupying the city of [[Kraków]], he controlled important trade routes from Prague to [[Kiev]] and [[Lviv]]. He even allied with Mieszko in the campaign against the Saxon count [[Wichmann the Younger]]. Boleslaus was ambitious in his conquest gaining many new territories for Bohemia. It was under Boleslaus that the “hradská soustava” system was created. In this system, strongholds are built all along the countryside. These strongholds were integral for keeping governance over the land, each castle holding importance whether militaristic, political, or religious. As the Bohemian territory expanded, so did the expansion of Christianity in those territories.