Which preposition to use with medieval

in Occurrences 2%

Should any housewife conscientiously follow the advice given her by state and municipal authorities she would be the drudge at the center of a home quite medieval in development.

as Occurrences 1%

" "I feel as medieval as the Professor.

to Occurrences 1%

But the new ruler of England had to begin his work of administration not only amid the temporary difficulties of a general disorganization, but amid the more permanent difficulties of a time of transition, when society was seeking to order itself anew in its passage from the medieval to the modern world; and his victory over the most obvious and aggressive forms of disorder was the least part of his task.

Which preposition to use with  medieval