testamentary capacity

n. having the mental competency to execute a will at the time the will was signed and witnessed. To have testamentary capacity the author of the will must understand the nature of making a will, have a general idea of what he/she possesses, and know who are members of the immediate family or other "natural objects of his/her bounty." Inherent in that capacity is the ability to resist the pressures or domination of any person who may try to use undue influence on the distribution of the testator's (will writer's) estate. (See: will, undue influence)