Rules of Court
Section 2. Contents of petition. - A petition for the allowance of a will must show, so far as known to the petitioner:
(a) The jurisdictional facts;
(b) The names, ages, and residences of the heirs, legatees, and devisees of the testator or decedent;
(c) The probable value and character of the property of the estate;
(d) The name of the person for whom letters are prayed;
(e) If the will has not been delivered to the court, the name of the person having custody of it.
But no defect in the petition shall render void the allowance of the will, or the issuance of letters testamentary or of administration with the will annexed.