William Gillette's "castle", called Seventh Sister, was built between 1914 and 1919 [2] on a 184-acre (74 ha) tract at the top of the southernmost of a chain of hills known as the Seven Sisters. Gillette died having no children, and his will precluded the possession of his home by any "blithering sap-head who has no conception of where he is or with what surrounded". The State of Connecticut took over the property in 1943, renaming it Gillette Castle State Park. It was added to the National Register of Historic Places in 1986.[3]
