Place of probate of will or of administration of estate.) When the will of a testator is probated or when the estate of a decedent or missing person is administered in this State, the probate or the administration shall be in the court of the county determined as follows:
     (a) In the county where he has a known place of residence;

Terms Used In Illinois Compiled Statutes 755 ILCS 5/5-1

  • Decedent: A deceased person.
  • Probate: Proving a will
  • State: when applied to different parts of the United States, may be construed to include the District of Columbia and the several territories, and the words "United States" may be construed to include the said district and territories. See Illinois Compiled Statutes 5 ILCS 70/1.14
  • Testator: A male person who leaves a will at death.

     (b) If he has no known place of residence in this State, in the county in which the greater part of his real estate is located at the time of his death; or
     (c) If he has no known place of residence and no real estate in this State, in the county where the greater part of his personal estate is located at the time of his death.