A more thorough explanation:

Definition: Accidentalalia Feudi is a legal term that refers to all nonessential terms in a feudal contract. These terms are not necessary for the fee and may include building restrictions or other non-essential clauses.

Example: An example of accidentalalia feudi could be a clause in a feudal contract that restricts the type of crops that can be grown on the land. This clause is not essential to the fee and is considered nonessential.

Explanation: The example illustrates how accidentalalia feudi refers to nonessential terms in a feudal contract. The clause restricting the type of crops that can be grown on the land is not necessary for the fee and is considered nonessential.