The diocese was established about 1125 by the Piast Duke Bolesław III Wrymouth of Poland in the westernmost region of Poland in the lands west of Greater Poland settled by pagan Polabian Slavs, in order to counter the eastward expansion of the Holy Roman Empire expedited by Emperor Henry V and the Archbishopric of Magdeburg. Duke Bolesław prompted the construction of St. Adalbert Cathedral in Lubusz, consecrated to the diocesan patron saint Adalbert of Prague, which was later destroyed. Lubusz was a suffragan diocese of the Archbishopric of Gniezno, a first bishop Bernard is documented in 1133, who is identical with Bernard of Spain, a missionary among the Pomeranians. With the fragmentation of Poland among Bolesław's sons the influence of the Empire increased. Lebus fell to the Duchy of Silesia held by the heirs of Bolesław's first-born son Władysław II the Exile, and the area became a destination of the German Ostsiedlung. After the Silesian Duke Henry II the Pious had died at the 1241 Battle of Legnica, his son Bolesław II the Bald in 1248 finally lost the Lubusz Land to the Magdeburg archbishopric and the Ascanian margraves of Brandenburg, who began to attach the territories east of the Oder to their possessions as the Neumark region. While the Ascanians and the Wettin archbishops competed to win influence, the diocese itself remained subordinate to Gniezno and the Lebus bishops maintained the interests of the Polish Piast rulers. In view of the pressure exerted by Brandenburg, the bishops in 1276 moved the episcopal seat to Göritz east of the Oder. When in 1320 the last Ascanian margrave Henry II died with no heirs the dispute rekindled. Bishop Stefan II supported King Władysław I the Elbow-high of Poland, when he campaigned the Brandenburgian Neumark. In revenge the new Wittelsbach margrave Louis I of Brandenburg in 1325 raided Górzyca and demolished the cathedral. Bishop Stephan II fled to Poland and not until 1354 an agreement was settled between Bishop Henry II Bencz and Margrave Louis II the Roman upon the reinstallation of the bishopric at Lebus. Nevertheless, in 1373 the newly erected cathedral was devastated again by the troops of Emperor Charles IV in the conflict between the Imperial Houses of Wittelsbach and Luxemburg over the Brandenburgian heritage. The bishop took residency in Fürstenwalde and in 1385 the cathedral chapter was moved there too. Not before 1424 the Brandenburg Elector Frederick I of Hohenzollern managed to separate the bishopric from Gniezno and to assign it as a suffragan to the Magdeburg archdiocese. In 1518 the bishops of Lebus acquired the Lower Lusatian lordships of Beeskow and Storkow. , place of death of the last Catholic bishop in 1555 As since 1513 the House of Hohenzollern also had held the office of the Magdeburg archbishops, Lebus finally turned Protestant and was secularized in 1555. The former bishopric was finally incorporated into Brandenburg, when in 1598 the last Lutheran administratorJoachim Frederick of Hohenzollern became elector.
Legacy
When in 1930 the former Lebus diocesan area became part of the new Diocese of Berlin the latter considered itself in the tradition of Lebus – and three more defunct dioceses – and adopted Lebus' diocesan crest as part of Berlin's diocesan coat of arms. Between 1951 and 1972 the Catholic jurisdiction in the Polish-annexed areas of former Lebus diocese, also comprising further areas, was officially titled the Apostolic Administration of Cammin, Lebus and Schneidemühl Prelature.
Composition
Though the considerably small though quite affluent diocese consisted only of one archdeaconry, its 172 parishes were divided into eight main rectories: Falkenhagen, Frankfurt, Kostrzyn, Müncheberg, Ośno, Rzepin, Seelow and Sulęcin. The territory of the prince-bishopric was made up of the three Ämter Lebus, Fürstenwalde and Beeskow.
