(1) A contract of inheritance may be made only by being recorded by a notary in the simultaneous presence of both parties. The provisions of section 2231 no. 1 and sections 2232 and 2233 are applicable; what applies for a testator under these provisions also applies to each of the contractual parties.
(2) For a contract of inheritance between spouses or between engaged persons that is joined with a marriage contract in the same document, the form prescribed for a contract of marriage suffices.