heirship

plural heirships

1. countableuncountableThe status of being heir to something or someone

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

   1911, Bram Stoker, The Lair of the White Worm

   2 more examples

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

   1858, Various, The Atlantic Monthly, Volume 2, Issue 12, October, 1858

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

   1905, Editor-in-Chief: Rossiter Johnson, The Great Events by Famous Historians, Vol. 8