Kehr, p. 447, no. 22. Philipp Jaffé (1865). Bibliotheca rerum Germanicarum (in Latin and German). Vol. Tomus II: Gregoriana. Berlin: Weidmann. pp. 138–139. Porro legatos nostros, praesentium videlicet latores, ob hoc ad vos usque direximus: ut, ad quem finem instans negocium perveniat, aspiciant; et controversiam, quae inter te et abbatem Sancti Sepulchri plebemve Placentinam sive Bonizonem subdiaconum versatur, intentius audiant....
Robinson, p. 43. Ernst Perels (ed.), Bonizo de Sutri, Liber de vita Christiana, foreword by Walter Berschin (Hildesheim 1998). The original version was published in 1930: Bonizo [of Sutri]. Liber de vita christiana. Edited by Ernst Perels. Texte zur Geschichte des römischen und kanonischen Rechts im Mittelalter, Bd. I. Berlin: Weidmannsche Buchhandlung, 1930. Dümmler, p. 570: Inde a libro VI. scilicet narrat posteris quae ipse aequalis viderat aut compererat. Verum temporem anteriorem nomina et facta saepissime commutat vel confundit. Angelo Mai, ed. (1854). Patrum nova bibliotheca (in Latin). Vol. Tomus VII, pars iii. Roma: typis Sacri Consilii propagando christiano nomini. pp. 1–176.
Vita Anselmi episcopi Lucensis chapters 40-42, in: Monumenta Germaniae Historica, Scriptorum Tomus XII (Hannover: Hahn 1856), pp. 24-25. Robinson, p. 39.
It is reported by the monk and chronicler Bernoldus of S. Blasius, under the year 1089, that he had his eyes gouged out and his limbs cut off: post multastas captiones, tribulationes et exilia a Placcntinis catholicis pro episcopo recipitur; set a scismaticis eiusdem loci effossis oculis, truncatis omnibus paene membris martirio coronatur. Dümmler, p. 569, note 8. Monumenta Germaniae Historica, Scriptorum Tomus V (Hannover: Hahn 1844), p. 449.