Probate of a will is the legal process of proving that the will is valid and confirming the authority of the executor to administer the deceased person's estate. It involves the court-supervised procedure to prove the authenticity of the will, appoint the executor named in the will, and give them the legal power to collect assets, pay debts and taxes, and distribute the remainder to beneficiaries. Probate is required to ensure the rightful administration of the deceased's property, money, and possessions according to the will or, if there is no will, according to the law.