Which preposition to use with wardships

of Occurrences 7%

The king shall not claim the wardship of any minor who hold lands by military tenure of a baron, on pretence that he also holds lands of the crown by soccage or any other tenure.

over Occurrences 1%

Lurking in the background, however, ready to leap forward as soon as she should be alone, was the torturing fact that Miss Sniffen still kept cruel wardship over her prisoners, and she counted over and over, joyfully marking them off one by one on her calendar, the days before Mr. Randolph would be at home again.

with Occurrences 1%

But it was a day when one entered love's wardship with a plunge, not in more modern fashion venturing forward bit by bit, as though love were so much cold water.

Which preposition to use with  wardships