Which preposition to use with princelings

from Occurrences 1%

For he was something more of an experiment than the ordinary Indian princeling from a State well under the thumb of the Viceroy and the Indian Council.

than Occurrences 1%

Nor could anything have been devised better calculated to knock the nonsense out of a princeling than apprenticeship in the Danish navy.

Which preposition to use with  princelings