Which preposition to use with asserters

of Occurrences 10%

If we suffer the liberty of the freeholders to be infringed, what can we expect but to be charged with betraying our trust, and giving up to servitude and oppression those who deputed us to this assembly, as the guardians of their privileges, and the asserters of their birthright; a charge too just to be denied, and too atrocious to be borne.

in Occurrences 1%

An intransitive or receptive asserter in the unlimited mode, depending on a word in the possessive case, may have, after it, a word in the subjective case, denoting the same thing:

Which preposition to use with  asserters