Which preposition to use with whereon

aloft Occurrences 1%

Wrathful from her I turn, and forthwith hasten out, Toward the steps, whereon aloft the Thalamos Rises adorned, thereto the treasure-house hard by; When, on a sudden, starts the wonder from the floor; Barring with lordly mien my passage, she herself In haggard height displays, with hollow eyes, blood-grimed, An aspect weird and strange, confounding eye and thought.

from Occurrences 1%

Across the broad, black oaken stool, whereon from boyhood it had been my habit to place my clothes neatly folded up, I found a suit of new red cloth, plain and rich, with an inscription upon a strip of vellum laid across the breast, bearing that these were a gift from the most Illustrious Duke Otho of the Wolfmark.

on Occurrences 1%

Robert Southwell, "thirteen times most cruelly tortured," could "not be induced to confess anything, not even the colour of the horse whereon on a certain day he rode, lest from such indication his adversaries might conjecture in what house, or in company of what Catholics, he that day was."

through Occurrences 1%

MEPHISTOPHELES We've but to spread this mantle wide, 'Twill serve whereon through air to ride; No heavy baggage need you take, When we our bold excursion make.

Which preposition to use with  whereon