Fidem Mentiri: The Legal Concept of Breaking Oaths of Fealty

Definition & Meaning

The term "fidem mentiri" refers to the act of breaking an oath of fealty, which is a promise made by a tenant to their lord. When a tenant fails to uphold this sworn loyalty, they are said to be committing fidem mentiri. This concept is rooted in historical feudal relationships, where loyalty and allegiance were paramount.

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Real-world examples

Here are a couple of examples of abatement:

Hypothetical example: A tenant who has sworn loyalty to a landowner and then decides to sell the property without the landowner's consent may be considered to have committed fidem mentiri by breaking their oath.

Comparison with related terms

Term Definition Difference
Breach of Contract Failure to fulfill the obligations of a contract. Fidem mentiri specifically relates to oaths of loyalty, while breach of contract applies to any contractual agreement.
Fealty Loyalty or allegiance to a lord. Fealty is the obligation itself, while fidem mentiri refers to the act of breaking that obligation.

What to do if this term applies to you

If you believe you are involved in a situation related to fidem mentiri, it is important to assess the terms of any loyalty agreements you may have. You may benefit from consulting legal resources or templates available through US Legal Forms to better understand your rights and obligations. If the situation is complex, consider seeking professional legal advice.

Quick facts

  • Context: Historical feudal law.
  • Related to: Oaths of loyalty and fealty.
  • Potential consequences: Legal disputes over property and loyalty agreements.

Key takeaways

Frequently asked questions

It refers to breaking an oath of fealty, specifically the loyalty a tenant owes to their lord.