A more thorough explanation:

Term: Alienatio feudifirmae feudifirmarum Definition: Alienatio feudifirmae feudifirmarum is a legal term that refers to the transfer of a feuholding of feuholders. This term was used in the past to describe the conveyance of Crown lands, which were subject to strict rules against alienation. This means that the lands could not be sold or transferred to anyone else. However, this term allowed for the transfer of these lands to other people, despite the prohibition. Example: In the past, the Crown lands were considered to be very valuable and were often passed down from generation to generation. However, if the owner of the land wanted to sell it, they were not allowed to do so. This is where the term alienatio feudifirmae feudifirmarum came into play. It allowed the owner to transfer the land to someone else, while still maintaining some control over it. Explanation: The example illustrates how the term alienatio feudifirmae feudifirmarum was used to get around the strict rules against the sale or transfer of Crown lands. It allowed the owner to transfer the land to someone else, while still maintaining some control over it. This was important because the Crown lands were considered to be very valuable and were often passed down from generation to generation.