heirship

noun

1. (countable, uncountable)The status of being heir to something or someone

   “He began to fear lest he should be obliged to fulfil the duty of heirship to the property deposited with him.”

   “When that outworn empire perished with the fall of Constantinople, Ivan succeeded nominally at least to its heirship.”

   “"After this the family interest merely rested on heirship of the estate.”