Глогувское княжество
One year later, in order to avoid the intervention of Emperor Louis IV, Henry IV put his Duchy under the protection of the Holy See. On 29 July 1326 Henry IV concluded a treaty with his brothers Jan of Ścinawa and Przemko II of Głogów, according to which if one of them died without male issue, the other two inherited his land. It seems that it was an attempt to restore the unity of the Duchy of Głogów.