After the statute of Quia Emptores, the grantee held of the grantor, who continued to be responsible to the Crown for services charged on the estate. The grantor therefore usually retained some interest in it, a claim for suit or service from the purchaser, or the payment of a quarter or more of the estimated value of the property. This head or fee-farm rent was called " census " or sometimes chief-rent, " capitalis redditus."