«Urseius ait ...». Riflessioni su una decisione di Urseio Feroce

The essay analyses a text by Ulpian – D. 10.3.6.12 (Ulp 19 ad ed.) –, which refers to a decision of Urseius Ferox, with a note by Julian. More specifically, attention is focused on the ratio of avowal to the partner, who had made the opus novum despite the operis novi nuntiatio, of the possibility of acting against the other partner for the reimbursement of the poena which had been paid. Furthermore, Julian's note, which places a limit on the possibility of regression by the partner, is examined, in an effort to identify the exact meaning of the statement «si interfuit aedium hoc fieri».