Which preposition to use with erle

of Occurrences 4%

In 1603, a fourth edition of a Latin version appeared at Basil; and from Ward's dedication to "the lorde Russell, erle of Bedford," it seems that the French and Dutch were not without so great a treasure in their own languages.

in Occurrences 2%

Nor yet I aske not this As mercye for myne Erle in ought to crave, Whom I to well do knowe howe thou hast slayen.

after Occurrences 1%

I read that one Gualterus was the first Erle after the conquest of it.

Which preposition to use with  erle