Which preposition to use with knowen

to Occurrences 6%

but I pray you: what can ther by there of God, of his worde, of of honestye in such folishnes: I holde my tounge, that is, I speake nothing of their wordes, amorous deuises, or deuises of loue, wanton communications or speeches or markes only knowen to the Ladye, or Gentlewoman.

from Occurrences 2%

They all, and their offspring vse to weare red caps, (for so they are commaunded) because they may thereby be knowen from other men.

of Occurrences 1%

The custome of the Portugals is, that any Moore or Gentile, of what condition or state soeuer he be, may not depart from Goa to go within the land, without licence of certaine deputies deputed for that office, who (if they be Moores or Gentiles) doe set a seale vpon the arme, hauing thereon the armes of Portugal, to be knowen of the porters of the citie, whether they haue the said licence or no.

Which preposition to use with  knowen