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Naming their son after his grandfather -- Prince Charles, the next in line to the British throne -- would be a very thoughtful choice. It is also name shared with the 17th-century king, Charles I, considered by some a saint, whose refusal to abandon his belief in the divine right of kings and his marriage to a Catholic ultimately led to English civil wars and his beheading. His son, Charles II, converted to Catholicism on his death bed.

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