Ex communi clariss. et consultiss. iuris professorum ordinis, in inclyta Basiliensium Academia decreto, subsequentes (de feudis) theses

XXXV.

He may confer it upon another from the time it becomes vacant, according to this law, which is not accepted in ecclesiastical matters.

XXXVI.

A fief is lost in seven primary ways: namely, by ingratitude, if he does not seek investiture within the defined times, or if he is contumacious stubbornly disobedient when summoned to purge a fault or called to an expedition. Whether and when he can serve through a substitute is declared by distinction.

XXXVII.

By a crime committed against the lord, and sometimes one that is to be committed. He loses it if he deserts his lord while in danger in war, though not if the lord is mortally wounded. If he fails to notify the lord of a danger. If he brings shame upon his wife.

XXXVIII.

If, however, a vassal has known the concubine of his lord, Zasius asserts that the fief is not lost. And generally, for the same reasons a son may be disinherited, a gift revoked, or a wife repudiated, for those same reasons a vassal may be deprived of his fief.

XXXIX.

Although extension is illicit in penal matters, I believe, contrary to Vigilius, that for equally urgent or other more serious causes, a son can be stripped of his inheritance and a vassal of his fief.