Intestacy is the condition of the estate of a person who dies without having made a valid will or other binding declaration. Alternatively this may also apply where a will or declaration has been made, but only applies to part of the estate; the remaining estate forms the "intestate estate".
Intestacy law, also referred to as the law of descent and distribution, refers to the body of law (statutory and case law) that determines who is entitled to the property from the estate under the rules of inheritance.
Intestacy has a limited application in those jurisdictions that follow civil law or Roman law because the concept of a will is itself less important; the doctrine of forced heirship automatically gives a deceased person's next-of-kin title to a large part (forced estate) of the estate's property by operation of law, beyond the power of the deceased person to defeat or exceed by testamentary gift. A forced share (or legitime) can often only be decreased on account of some very specific misconduct by the forced heir. In matters of cross-border inheritance, the "laws of succession" is the commonplace term covering testate and intestate estates in common law jurisdictions together with forced heirship rules typically applying in civil law and Sharia law jurisdictions. After the Statute of Wills 1540, Englishmen (and unmarried or widowed women) could dispose of their lands and real property by a will. Their personal property could formerly be disposed of by a testament, hence the hallowed legal merism last will and testament.
Common law sharply distinguished between real property and chattels. Real property for which no disposition had been made by will passed by the law of kinship and descent; chattel property for which no disposition had been made by testament was escheat to the Crown, or given to the Church for charitable purposes. This law became obsolete as England moved from being a feudal to a mercantile society, and chattels more valuable than land were being accumulated by townspeople.