Monulph[1] was a sixth-century bishop of Tongeren-Maastricht. A shadowy figure, his date of death is traditionally given as 588. ALegend holds that he founded a church in 558 at the river confluence that would become Liège[2]. His birthplace is given as Dinant, his father's name as Randace[3].
He is also supposed to have moved the see of the diocese, from Tongeren to Maastricht. In practice the bishops had resided there from the beginning of the sixth century. Monulph built a large tomb for St Servaas.[4], or "Aravatius"[5].
His successor was Gondulphus; they are both Catholic saints, sharing the feast day July 16[6]. The Catholic Encyclopedia of 1913 raised the question of whether they may refer to the same person[7]. Louis Duchesne has suggested that Monulph succeeded Servaas directly (in contradiction of the account in Gregory of Tours)[8].