Le Morte Darthur

And when matins and the first Mass was done, there was seen in the churchyard, against the high alter, a great stone four square, like unto a marble stone; and in the midst thereof was like an anvil of steel a foot on high, and therein stuck a fair sword naked by the point, and letters there were written in gold about the sword that said thus: "Whoso pulleth out this sword of this stone and anvil, is rightwise king born of all England."