Connecticut Colony
Both New Haven Colony and Connecticut Colony had sought to establish Southold as a theocracy. The New Haven Colony did not permit other churches to operate at all, while the Connecticut Colony allowed freedom of religion. New Haven supervised Southold until 1662, when New Haven towns began shifting their allegiance to the surrounding Connecticut Colony. By 1664, New Haven colonists all had decided to join Connecticut, and the New Haven colony ceased to exist. Southold was supervised by the Connecticut Colony until 1674.