New Castle County, Delaware On November 6, 1674, New Amstel was made dependent on New York Colony, and was renamed New Castle on November 11, 1674. On September 22, 1676, New Castle County was formally placed under the Duke of York's laws. It gained land from Upland County on November 12, 1678. On June 21, 1680, St. Jones County was carved from New Castle County. It is known today as Kent County, Delaware. On August 24, 1682, New Castle County, along with the rest of the surrounding land, was transferred from the Colony of New York to the possession of William Penn, who established
Ewloe Castle middle of the 12th century. The rolls record that by 1257 Llywelyn ap Gruffudd had regained Ewloe from the English and built a castle in the wood; noting in 1311 that much of the castle was still standing. By the late medieval period, the site was in ruins. Much of the castle's dressed stone work from its curtain walls and Keep were removed for construction material around Mold and Connah's Quay. Ewloe Castle, which is a Grade I listed building, is incorporated within Wepre Park; a country park managed by Flintshire County Council. The castle is under the care of