Why was new jersey at one point divided into two separate colonies?

During the English Civil War the island of Jersey remained loyal to the Crown and gave asylum to the king. It was from the royal square of Saint Helier that Charles II was proclaimed king for the first time in 1649, after the execution of his father, Carlos I. The lands of North America were divided by Charles II, who gave his brother, the Duke of York (later King James II), the region between New England and Maryland. James then granted the land between the Hudson River and the Delaware River to two friends who had remained faithful during the Civil War: George Carteret and John Berkeley. The area was named province of New Jersey.

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