Which preposition to use with personation

of Occurrences 9%

It has a threadcertainly a slender threadof narrative or fable; the personation of the poetic figure Adonais, as distinct from the actual man John Keats, and the incidents with which that poetic figure is associated.

as Occurrences 1%

No man surely ever had so little talent for personation as Johnson.

Which preposition to use with  personation