A metal detector enthusiast believes he has found a royal crown jewel buried in a field. Peter Beasley, 67, was stunned when he pulled a heavy gold ring from the ground while out with his metal detector near Petersfield. He claims the ring is 900 years old and belonged to Robert, the eldest son of William the Conquerer, whose name is engraved on the ring. Robert, known as 'Short-legs', unsuccessfully attempted to take the English throne when he landed in Portsmouth in 1101. But Mr Beasley is now involved in a dispute over the authenticity of the ring. The British...