[11] Baioaricum deinde bellum et repente ortum et celeri fine conpletum est. Quod superbia simul ac socordia Tassilonis ducis excitavit; qui hortatu uxoris, quae filia Desiderii regis erat ac patris exilium per maritum ulcisci posse putabat, iuncto foedere cum Hunis, qui Baioariis sunt ab oriente contermini, non solum imperata non facere, sed bello regem provocare temptabat. Cuius contumaciam, quia nimia videbatur, animositas regis ferre nequiverat, ac proinde copiis undique contractis Baioariam petiturus ipse ad Lechum amnem cum magno venit exercitu. Is fluvius Baioarios ab Alamannis dividit. Cuius in ripa castris conlocatis, priusquam provinciam intraret, animum ducis per legatos statuit experiri. Sed nec ille pertinaciter agere vel sibi vel genti utile ratus supplex se regi permisit, obsides qui imperabantur dedit, inter quos et filium suum Theodonem, data insuper fide cum iuramento, quod ab illius potestate ad defectionem nemini suadenti adsentire deberet. Sicque bello, quod quasi maximum futurum videbatur, celerrimus est finis inpositus. Tassilo tamen postmodum ad regem evocatus neque redire permissus, neque provincia, quam tenebat, ulterius duci, sed comitibus ad regendum commissa est.

Tassilo and the Bavarian Campaign

[11] At this time, on a sudden, the Bavarian war broke out, but came to a speedy end. It was due to the arrogance and folly of Duke Tassilo. His wife [Liutberga], a daughter of King Desiderius, was desirous of avenging her father's banishment through the agency of her husband, and accordingly induced him to make a treaty with the Huns, the neighbors of the Bavarians on the east, and not only to leave the King's commands unfulfilled, but to challenge him to war. Charles' high spirit could not brook Tassilo's insubordination, for it seemed to him to pass all bounds; accordingly he straightway summoned his troops from all sides for a campaign against Bavaria and appeared in person with a great army on the river Lech , which forms the boundary between the Bavarians and the Alemanni. After Pitching his camp upon its banks, he determined to put the Duke's disposition to the test by an embassy before entering the province. Tassilo did not think that it was for his own or his people's good to persist, so he surrendered himself to the King, gave the hostages demanded, among them his own son Theodo, and promised by oath not to give ear to any one who should attempt to turn him from his allegiance; so this war, which bade fair to be very grievous, came very quickly to an end. Tassilo, however, was afterward summoned to the King's presence [788], and not suffered to depart, and the government of the province that he had had in charge was no longer intrusted to a duke, but to counts.