Which preposition to use with heinousness

of Occurrences 9%

The countess launched into a disquisition on the heinousness of marrying any but a compatriot.

in Occurrences 1%

Gregory protests against the "solemn reflections on falsehood" by Eunomius, in this connection, and his seeing equal heinousness in it whether in great or very trivial matters.

Which preposition to use with  heinousness