Which preposition to use with palisadoes

before Occurrences 1%

"In the left there was a sort of engine, from the back of which were extended twenty long poles, resembling the palisadoes before your majesty's court; wherewith we conjecture the man-mountain combs his head; for we did not always trouble him with questions, because we found it a great difficulty to make him understand us.

Which preposition to use with  palisadoes