Theodwin of Liège
Originally from Bavaria, Theodwin was named by Henry III to succeed Wazo as bishop of Liège. In 1049 he led the imperial victory over Dirk IV of Frisia. In 1050-1051 he wrote to Henry I of France encouraging him to take firm action against Berengar of Tours.
In 1066, Theodwin ceded city rights to Huy, the oldest such charter to survive from what is now Belgium. On 23 March 1075 Pope Gregory VII wrote to him reproachfully about the lax clerical discipline in his diocese, urging him to leave the Abbey of Saint-Hubert unmolested.
- Philibert Schmitz, "Theoduin", in Biographie Nationale de Belgique, vol. 24 (Brussels, 1929), 757-758.
- Brigitte Meijns, "Papal Bulls as Instruments of Reform: the Reception of the Protection Bulls of Gregory VII in the Dioceses of Liège and Thérouanne (1074–1077)", Church History, 87:2 (2018), pp. 399–423.