The original charter of the Province of East Jersey had restricted membership in the Assembly to Christians; the Duke of York was fervently Catholic, and the proprietors of Perth Amboy, New Jersey were Scottish Catholic peers. The Province of West Jersey had declared, in 1681, that there should be no religious test for office. An oath had also been imposed on the militia during the French and Indian War requiring them to abjure the pretensions of the Pope, which may or may not have been applied during the Revolution. That law was replaced by 1799.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): What was the Duke of York's relationship to his religion described as being?
fervently Catholic