Bamberg, Staatsbibliothek Can. 19, fol. 180vb
Compilatio tertia 3.16.1

Huguccio, Summa Decretorum

'quia feudum est odiosum'. T<ancredus>


Decretales Gregorii IX 3.20.1 (Rome 1582)

Pennington, “Feudal Oath of Fidelity and Homage,” Law as Profession and Practice in Medieval Europe: Essays in Honor  of James A. Brundage, edited by Kenneth Pennington and Melodie Harris Eichbauer (Ashgate 2011) 93-115