PEF Code §711 sets forth those matters over which the Orphans' Court has mandatory and exclusive jurisdiction. These matters are:
In Philadelphia, the Family Court Division of the Court of Common Pleas hears matters involving adoption, custody of minors, and birth records.
The Register of Wills has original jurisdiction of the probate of wills and the grant of letters to a personal representative. See PEF Code §901. The Orphans' Court has jurisdiction over appeals from a decree of the Register of Wills. See PEF Code §908. See also Pa. and Phila.O.C. Rule 10; PEPH, Blue Book.