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

X.
Generally, immovable property and rights can be given as a fief. Things of the soil, such as a territory or a County. Things adhering to the soil, such as a fortress. Finally, things which the jurists of civil law—as I have said—count among the immovables for the sake of the name, such as jurisdiction. Likewise, all things that are in commerce and are not prohibited from being alienated by law, statute, custom, or testament.

XI.
The result is that dotal land or the immovable property of minors cannot be given as a fief. Nor that of the Church, unless something has been introduced by custom, in which matter there is a long distinction. An exception is made for a fief that can be given to another, but cannot be alienated.

XII.
When a territory has been granted, it is usually explained by a distinction whether royal rights original: "regalia" are considered granted.

XIII.
It is acquired by donation, by purchase—though whether with the condition of a forfeiture clause original: "lex commissoria" is left in the middle—by exchange, by prescription, by the tradition of possession, which possession, however, is not (as some wish) its own investiture, and by succession, which on the part of the vassal is entirely legitimate.

XIV.
In the investiture of a new fief, greater caution and solemnity are required than for a paternal one; among other things, it must be done in the presence of the peers of the court, which is not necessary in ecclesiastical matters.