forced heir

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
FORCED HEIRS. In Louisiana they are those persons whom the testator or donor 
cannot deprive of the portion of his estate reserved for them by law, 
except in cases where he has a just cause to disinherit them. Civ. Code of 
Lo. art. 1482. As to the portion of the estate they are entitled to, see the 
article Legitime. As to the causes for which forced heirs may be deprived of 
this right, see Disinherison. 
    

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