Which preposition to use with nonpareil

of Occurrences 5%

King John of France, once prisoner in England, came to visit his old friends again, crossing the seas; but the truth is, his coming was to see the Countess of Salisbury, the nonpareil of those times, and his dear mistress.

at Occurrences 2%

When Adam laid out his first penny upon nonpareils at some stall in Mesopotamos, I think it went hard with him, reflecting upon his old goodly orchard, where he had so many for nothing.

in Occurrences 1%

O thou art an apt scholarthou wilt be nonpareil in the art of brawling!But for the QUARREL SENSITIVE KASTRIL.

Which preposition to use with  nonpareil