Goffredus de Trano, Summa

Köln, Erzbischöfliche Diözesan- und Dombibliothek 135, fol. 40r

1. "Quod enim omnes tangit ab omnibus approbari <debet>."

Vincentius Hispanus († 1248)

1. Lay people should be called

2. Participation is a right (ius)

Henricus of Segusio († 1271)

1. Cathedral chapters represented by proctors

2. Laymen should be present when matters touched marriage or doctrine

Nicholas de Tudeschi († 1445)

1. Lay jurists should participate

2. Chapters are represented by necessity