Collocations for heir - noun

lawful, legal, legitimate, rightful
the rightful heir to the throne

natural, real, true
The socialists saw themselves as true heirs of the Enlightenment.

direct
When the Earl of Surrey died in 1347 he left no direct heir.

immediate | designated | apparent, presumptive
(both only after

heir)
On his brother''s death he became heir apparent to the title.

sole | female, male | political, spiritual
The house was her spiritual home for which she sought a spiritual heir.

have
He has no heir to leave his fortune to.

beget, get, produce
He planned to marry and produce an heir for his estate.

became, fall
At the age of twenty he fell heir to a large estate.

~ to
He is the sole heir to a large mining fortune.

the heir to the throne, sb''s son and heir
He left most of his property to his eldest son and heir.