One of the problems of studying the Frankish kingdom of Lotharingia – the ‘lost’ kingdom between France and Germany – is that the main narrative sources for the time were written outside its borders: they are external perspectives, looking in. It is this that makes the charters issued by Emperor Lothar I and by his son King Lothar II (855-869) so important, as ‘internal’ evidence. A full book-length study of the former by Elina Screen is in hand; this short blogpost focuses on the latter, all available in a high-quality and open-access edition.
Only thirty-six charters from Lothar II’s nearly fifteen-year reign survive (including a handful of originals with images available online).. This isn’t an enormous number, either in absolute terms or compared to the 139 from his father’s admittedly larger kingdom. But the charters nevertheless provide a great deal of useful information, in this as in other early medieval contexts.
For instance, we know that issuing a charter was a ceremonial act, by which a king demonstrated his authority. Where it took place mattered, then, as the scene for the expression of royal power. Lothar II issued charters at sixteen different locations, including palaces, monasteries and cities. Plotting these locations on a map creates a view of Lothar’s kingdom defined not by its borders but by its centres of power – a king’s eye view of his kingdom, as it were (see the map above, showing how his kingdom spanned five modern countries).
His great-grandfather’s palace of Aachen towers above all the others, as the site for almost a third of Lothar II’s charters. But the charters also show change in his rule: for instance, the grants he issued in and around Lyon mark Lothar’s takeover of most of the kingdom of his younger brother, Charles of Provence, in 863.
Many charters also mention important political figures at the time, allowing us to reconstruct something of their careers. It’s striking that the first two of Lothar’s charters, both issued in 855, accord a prominent position to Hubert, the brother of Lothar’s first wife Theutberga. Hubert is described in the first of the two as an influential courtier (‘our beloved adviser Hubert’). Hubert then however disappears – only to crop up again in 868, but this time as a dead rebel whose property had been confiscated.
Another important figure at Lothar’s court was Archbishop Gunthar of Cologne. Although deposed by the pope in 863, Gunthar tried to cling on, and a document from 866 suggests that in that year Lothar II supported him. It states that Gunthar, though longer an archbishop, was now the gubernator et rector of the church – we might say ‘manager’ – and was making efforts to keep the Cologne clergy onside, with Lothar’s help.
But as so often with Lothar II, it’s his marriage that attracts the eye. Here’s an English translation (pdf) of one of the most evocative of his charters, granting property to a convent in Lyon and issued in the early summer of 863. This was just a few weeks after a council at Metz had confirmed, with the approval of papal legates, that he could be married to his mistress Waldrada. And sure enough, in this charter Waldrada is given a prominent place, as Lothar’s ‘dearest wife’; and their son Hugh gets a mention too. Issued on the occasion of Lothar’s successful acquisition of part of his deceased brother’s kingdom, and when all his marital problems seemed behind him, the charter may have marked the apogee of his reign.
Unfortunately, a few months later Pope Nicholas I stepped in to annul the Metz council, and threatened Lothar with excommunication unless he returned to his wife Theutberga. Waldrada vanishes from the charters. She reappears only in early 869, as ‘our beloved’ (without any reference though to her marital status). At that point, Lothar probably hoped that the new pope Hadrian, who had succeeded to the intransigeant Nicholas, might be more open to negotiation. But fate decided otherwise, since Lothar himself died, still a young man, just a few months later. The 863 charter survives, then, as a poignant reminder of what might have been, for Lothar, Waldrada, Hugh – and indeed for European history more broadly.
 Two of these originals can be viewed online at the Marburg Lichtbildarchiv website, Zugangsnummern 4743 and 11400. For the rest, see the amazing Abbildungsverzeichnis der europäischen Kaiser- und Königsurkunden‘s page for Lothar II.
*** update 17/07/2020*** On this charter, see now Paul Fouracre, ‘Lights, power and the moral economy of early medieval Europe’, Early Medieval Europe 28 (2020), 367-387