Which preposition to use with unbarred

without Occurrences 1%

This plague-spot had fretted more deeply than any other into the heart of the school morality, and the least boys seemed the greatest proficients in unbaring without a blush, its hideous ugliness.

at Occurrences 1%

35 VI "There was in Asia, in a mighty town, 'Mong Christian folk, a street where Jews might be, Assigned to them and given them for their own By a great Lord, for gain and usury, Hateful to Christ and to his company; 40 And through this street who list might ride and wend; Free was it, and unbarred at either end.

on Occurrences 1%

Worse than that, the cave of Cruachan in Connaught, known as "the Hell-gate of Ireland," is unbarred on Samhain Eve or Hallowe'en, and a host of horrible fiends and goblins used to rush forth, particularly a flock of copper-red birds, which blighted crops and killed animals by their poisonous breath.

to Occurrences 1%

And as to the house of correction, it seemed as though its doors were unbarred to me, and the wretched, lacerated inmates of its cold, dark cells were presented to my view.

Which preposition to use with  unbarred