If anyone holds of the king by fee-farm, socage or burgage, and of someone else by knight service, the king is not to have the wardship of the knights of another man’s fee by reason of the burgage or socage, nor is he to have the wardship of the burgage, socage or fee-farm. And no free man is to lose his knights by reason of petty serjeanties, like those who hold a tenement by rendering knives or arrows or suchlike.