Kidwelly Castle is a Norman castle overlooking the River Gwendraeth and the town of Kidwelly, Carmarthenshire, Wales. The origin of this surname traces back to when it was spelled Cygweli which means "swan."
Wikipedia https://en.wikipedia.org/wiki/Kidwelly_Castle
Official Website http://cadw.gov.wales/daysout/kidwellycastle/?lang=en
Address 3 Castle Road, Kidwelly SA17 5BQ, United Kingdom
Coordinates 51°44'22.08" N -4°18'20.689" E