20 Pa.C.S. § 3501.2

A personal representative who has received property from a trustee, guardian or agent following the decedent's death may annex a copy of an account of the administration of the trust, guardianship or agency to an account filed by the personal representative covering the administration of the estate. If notice of the annexation of the account of the trust, guardianship or agency is given to the persons required to be notified of the filing of the account of the estate, confirmation of the account of the estate shall relieve both the personal representative and the trustee, guardian or agent of all liability to the persons so notified for transactions shown in the accounts so annexed to the same extent as if the annexed account had been separately filed and confirmed.