In law a settlor is a person who settles property on trust law for the benefit of beneficiaries. In some legal systems, a settlor is also referred to as a trustor, or occasionally, a grantor or donor. Where the trust is a testamentary trust, the settlor is usually referred to as the testator. The settlor may also be the trustee of the trust (where he declares that he holds his own property on trusts) or a third party may be the trustee (where he transfers the property to the trustee on trusts). In British common law it has been held, controversially, that where a trustee declares an intention to transfer trust property to a trust of which he is one of several trustees, that is a valid settlement notwithstanding the property is not vested in the other trustees.