[001] in perpetuity by the aforesaid service. By saying I and my heirs, he binds to [002] warranty himself and his heirs, near and remote, present and future, succeeding [003] him in perpetuity. By the words we will warrant, he takes upon himself the [004] burden of defending in his possession of the thing given his tenant [and his heirs, [005] or his heirs or assigns, or] his assigns and their heirs [against] all others, as was said [006] above, if the tenement is sought by another in demesne. By saying we will acquit, [007] he obliges himself and his heirs to acquit if anyone claims additional service or [008] service other than that specified in the charter. By the words we will defend, he [009] obliges himself and his heirs to defend against anyone who seeks to impose a [010] servitude on the thing given contrary to the form of his gift. It is not enough if he [011] warrants the thing itself to him unless he warrants its appurtenances, whether [012] they are corporeal or incorporeal, as a right: corporeal, as where hamlets, not [013] physically part of the thing, belong to it;1 incorporeal, as where an advowson is [014] appurtenant to his own property or there is a servitude in another's. A warranty [015] may be broad or narrow. Broad, as where it is said, I and my heirs will warrant [016] to such a one and his heirs, Broader, as to such a one and his heirs and assigns [017] and the heirs of his assigns. Broadest of all, as to such a one and his heirs and [018] assigns and their heirs and the assigns of their assigns and their heirs. Then the [019] donor and his heirs are bound by the modus of the gift to warrant it directly to all [020] [such assigns and their heirs] if the thing has passed through that many hands.2 [021] But if he says, We will warrant to such a one and his heirs, and the donee gives [022] it over or assigns, the principal feoffor is not bound to warrant such persons directly [023] but [only] through a mesne, that is, each may vouch his own feoffor to warranty, [024] ascending step by step. A warranty may be narrow, as where he says, to such a [025] one and his heirs of the wife to whom he is married; here the warranty is restricted [026] to the heirs expressed only and [does not extend] to others.3 Narrower still, as, [027] I and my heirs will warrant to you, thus excluding the heirs of the donee from [028] the warranty. Narrowest of all, as, I warrant to you, no mention made of the [029] heirs of the donor or the donee. 4Though in a gift homage is done and service [030] undertaken, by a modus placed in it [the donor] may be excused from warranting, [031] as where he adds this to his charter of gift, that neither he nor his heirs shall be [032] held to warrant,5 for an agreement often defeats law.6 When