TRYGWILLE. Boethius says that Trigguilla and Conigastus used their positions with the emperor to oppress the poor and that he (Boethius) upbraided them both for their evil ways, Bo I, Prosa 4.57-61. Cassiodorus does not mention him. [Albyn: Basilius: Boece: Conigaste: Cyprian: Decorat: Opilion]
The form is a variant of Jean de Meun's Triguille in Li Livres de confort de philosophie.