Teutberga was allegedly not capable of bearing children and Lothair's reign was chiefly occupied by his efforts to obtain an annulment of their marriage, prompted also by his affection for Waldrada.
Although quarrels and reconciliations between the three kings followed each other in quick succession, generally Louis favoured annulment, and Charles opposed it, while neither lost sight of the fact that Lothair had no legitimate sons to inherit his lands.
A church synod of all the bishops of Lotharingia held at the behest of Lothair II concerning his accusations was presided over by archbishops Ghunter and Thietgaud, both Waldrada's relations.
Still pursuing his purpose, Lothair won the support of his brother, Emperor Louis II, by a cession of lands and obtained the consent of the local clergy to the annulment and to his marriage with Waldrada, which took place in 862.
An attack on Rome by the emperor was without result, and in 865 Lothair was threatened with excommunication and was convinced that Louis and Charles at their recent meeting had discussed the partition of his kingdom.