Digestorum libri
Ex libro LV
Julianus, Digest, Book LV. Where the possessor of a tract of land fraudulently relinquished possession of the same before issue was joined, his heirs cannot be compelled to undertake the defence of the action in rem; but an action in factum should be granted against them by which they may be forced to surrender the amount to which they have profited by means of the property.
Ad Dig. 35,1,24ROHGE, Bd. 5 (1872), S. 111: Rechtliche Bedeutung der Clausel in Feuerversicherungspolicen: „die Versicherung wird erst durch die gehörig geleistete Prämienzahlung giltig“.Windscheid: Lehrbuch des Pandektenrechts, 7. Aufl. 1891, Bd. I, § 92, Noten 6, 10.The Same, Digest, Book XXXV. It has been established by the Civil Law that a condition is always considered to have been fulfilled where the party who is interested in not having this done opposes its fulfillment. Many authorities have extended the application of this rule to legacies and the appointment of heirs. Certain jurists have also very properly held that in cases of this kind, stipulations become operative when attempts are made by the promisor to prevent the stipulator from complying with the condition.
Julianus, Digest, Book LV. When one of two sureties who have promised to pay a judgment pays his share because the case was not defended, the defence can, nevertheless, be undertaken; but he who made payment cannot recover anything, as the stipulation is extinguished, so far as his share is concerned, just as if he had received a release. 1Whenever proceedings are instituted against sureties under a stipulation to pay a judgment, on account of the case not having been defended, it is not inequitable to provide that the principal shall be released from liability for the first judgment; because, if this provision were omitted, the sureties could not have recourse to the action on mandate, or they would certainly be compelled to defend the principal against the first judgment.