Digestorum libri
Ex libro LXXXII
The Same, Digest, Book LXXXII. The following clause, “If he should pay twenty aurei or swear that he will perform a certain act,” includes a condition which has two parts. Hence, if anyone should be appointed an heir under the condition that he will swear that he will pay ten aurei, or erect a monument, although he will be permitted, under the terms of the Edict, to receive the estate or the legacy, he will still be compelled to do what he was ordered to swear that he would do, as only the oath can be remitted. 1Ad Dig. 35,1,26,1Windscheid: Lehrbuch des Pandektenrechts, 7. Aufl. 1891, Bd. III, § 604, Note 6.Where the same property is bequeathed to one person absolutely, and to another conditionally, or where one heir is appointed absolutely, and another under a condition, and the condition fails, half of the legacy or the estate will accrue to the heir or the legatee to whom the legacy or the estate was absolutely bequeathed, provided the party accepted his share of the same.