Which preposition to use with diocesans

of Occurrences 1%

Good-morrow to my Valentine, sings poor Ophelia; and no better wish, but with better auspices, we wish to all faithful lovers, who are not too wise to despise old legends, but are content to rank themselves humble diocesans of old Bishop Valentine, and his true church.

with Occurrences 1%

A humility quite as primitive as that of Jewel or Hooker might not be exactly fitted to impress the minds of those Anglo-Asiatic diocesans with a reverence for home institutions, and the church which those fathers watered.

Which preposition to use with  diocesans