could take possession over his districts, which further arrangements according to custom. Many historians, however, believed the existence of a third document. If it was true, this would be a step towards the reunification of Poland, and Henry IV, who was denigrated particularly in the earlier literature, was really a conscious promoter of Poland interests and a true patriot (apart from the merits of raising the awareness of the problems of ethnic and linguistic diversity in the Middle Ages). Only the testament to the Church (who was not count with the return of Kłodzko to King Wenceslaus II of Bohemia as an excuse for mixing in the Silesian affairs) was fully implemented. Henry IV was buried in the Kolegiata of the Holy Cross and St. Bartholomeus in Wrocław, which he founded. Henry V the Fat could take Wrocław with support of King Wenceslaus II of Bohemia, after the local nobility refused to accept the rule of Henry III of Głogów. Wenceslaus II himself gained the Seniorate Province, but Duke Przemysł II could retain the title of High Duke. During World War II German anthropologists wanted to prove the "Germanic look" of Henry IV. To this end, his remains were removed and were to be tested. Unfortunately, they were lost during the war. The sarcophagus is now in the National Museum in Wrocław. Marriages Around March 1280, Henry IV married firstly with the daughter of Duke Władysław of Opole (b. ca. 1256/65? – d. 1287/88?), perhaps called Constance. After almost seven years of childless union, the Duke of Wrocław obtain the annulment of his marriage under the grounds of sterility, although this fact is disputed by modern historians. By 1288, Henry IV married secondly with Matilda (b. ca. 1270 – d. bef. 1 June 1298), daughter of Margrave Otto V "the Tall" of Brandenburg–Salzwedel. The Professor and historian Ewa Maleczyńska alleged that the real reason of the divorce of Henry IV was that he maintain an affair with Matilda and wanted to marry her. They had no children. See also History of Poland (966–1385) History of Silesia Piast dynasty Dukes of Silesia References "Piastowie. Leksykon biograficzny", Cracow, 1999. External links Herzog Heinrich von Breslau in the Codex Manesse (1304/40). Genealogical database by Herbert Stoyan SILESIA 1258 births 1290 deaths 13th-century Polish monarchs Polish Roman Catholics Dukes of Wrocław People excommunicated by the Catholic Church Place of birth missing Minnesingers