Rule 10.4 - Appeals For The Register Of Wills(a) Contents of Petition. When an appeal is taken from a judicial act of, or proceeding before, the Register, the contestant shall promptly present a petition to the Court, which shall set forth: (1) the nature of the proceeding before the Register;(2) the basis for the appeal; and(3) the names and address of all interested parties, including those who have not been made parties to the record.(b) Citation. If the petition sets forth a prima facie case, a citation will be issued, directed to all interested parties, including those not represented on the record, to show cause why the appeal should not be sustained and the judicial act or proceeding complained of be set aside.