Mieszko I of Poland place after Mieszko's death, specifically in 999. There is also a theory according to which during this transition period Lesser Poland was governed by Bolesław Chrobry, whose authority was granted to him by the Bohemian duke. At the end of his life (ca. 991-92), Mieszko I, together with his wife Oda and their sons, issued a document called "Dagome iudex", where the Polish ruler placed his lands under the protection of the Pope and described their borders. Only a later imprecise summary of the document has been preserved. There are two main theories concerning reasons behind the issuing of "Dagome
Mieszko I of Poland situation at that time. Another debatable point is Thietmar's claim that Mieszko "subordinated himself to the King". Most historians believe that it was only a matter of recognition of Otto's royal authority. Some suggest that a fealty relationship could in fact be involved. Whether or not the German-Polish invasion of Bohemia actually happened, the friendly relations between the Czechs and the Poles came to an end. Bohemia resumed its earlier alliance with the Lutici, which caused in 990 a war with Mieszko, who was supported by Empress Theophanu. Duke Boleslav II was probably the first one to attack. As a