§ 1909. Rights of the parties to be determined; unknowns

1. Where an order is made directing the sale of the real property for
distribution or directing the transfer thereof to a spouse or
beneficiary the court may fix and determine the rights and interests of
the respective parties in the order, or may postpone the determination
until the final judicial settlement of the accounts of the fiduciary.

2. If a party entitled to an estate or interest in the property is
made a party as a person unknown the court must provide for the
protection of his rights, as far as may be, as if he were known and had
appeared.