, 1922),
Breton nationalist engraving of Nominoe. The relations between Nominoe and
Charles the Bald, Louis's successor after 840, were initially amicable. In the midst of a revolt of his men in
Neustria, Charles sent from
Le Mans to see if Nominoe would submit to him in the spring of 841 and Nominoe agreed to do so. It is clear from the wording of the account of this event in
Nithard that Nominoe was too powerful to be compelled to submit; later in 841 he rebuffed the overtures of the new emperor,
Lothair I, who claimed Neustria. Nominoe remained loyal to Charles throughout the next year, even making a donation "in alms for the king" to the abbey of Redon on 25 January 842. Breton soldiers, as well as
Gascons, certainly took part in the military show of the
Oaths of Strasbourg. In the summer of 843, Lothair or perhaps his supporter
Lambert II of Nantes succeeded in persuading Nominoe to abandon Charles and go over to the emperor. Nominoe was thereafter a constant enemy of Charles and his authority in Neustria, often acting in concert with Lothair, Lambert, and
Pepin II of Aquitaine. Breton troops fought under Lambert in Neustria and when, in June 844, Charles was besieging
Toulouse, Nominoe raided into
Maine and plundered the territory. In November 843, Charles had marched as far as
Rennes to compel Breton submission, but to no effect. At the synod of
Yutz in October 844, presided over by Charles' uncle
Drogo of Metz, the bishops sent orders to Nominoe, Lambert, and Pepin commanding them to renew their fealty to Charles or be prepared to accept military consequences. Lambert and Pepin complied, but Nominoe ignored the Frankish bishops. However, some Bretons had connived against him with Charles and the king tried to enter Brittany in support of the defectors, but without success: he was defeated at the
Battle of Ballon just north of Redon across the
Vilaine on 22 November 845. ==Renewed loyalty and second rebellion==