(4) A much larger jurisdiction was that of the Connecticut River towns, settled in 1635-1636, contemporaneously with the banishment of Roger Williams.
(5) New Haven was settled in 1638, in the height of the Antinomian difficulties.

(6) A claim was advanced by the marquis of Hamilton for a tract of land running from the mouth of the Connecticut River to Narragansett Bay, assigned to him in the division of 1635, but it did not become a disturbing factor till 1665.
The early relations between the Dutch and English colonies were, as we have seen, characterized by kindness and good-fellowship.

The Dutch advised the Plymouth settlers to remove from their "present barren quarters," and commended to them the valley of the "Fresh River" (Connecticut), referring to it as a fine place both for plantation and trade.[33] Afterwards, some Mohegan Indians visiting Plymouth in 1631 made similar representations.

Their chief, Uncas, an able, unscrupulous, and ambitious savage, made it his great ambition to attain the headship of his aggressive western neighbors, the Pequots.
The only result had been to turn the resentment of the Pequots against himself; and he sought the protection of the Plymouth government by encouraging them to plant a settlement on the Connecticut in his own neighborhood.[34] These persuasions had at length some effect, and in 1632 Edward Winslow, being sent in a bark to examine the river, reported the country as conforming in every respect to the account given of it by the Dutch and the Indians.[35] Meanwhile, the Indians, not liking the delay, visited Boston and tried to induce the authorities there to send out a colony, but, though Governor Winthrop received them politely, he dismissed them without the hoped-for assistance.[36] In July, 1633, Bradford and Winslow made a special visit to Boston to discuss the plan of a joint trading-post, but they did not receive much encouragement.

Winthrop and his council suggested various objections: the impediments to commerce due to the sand-bar at the mouth; the long continuance of ice in spring, and the multitude of Indians in the neighborhood.