It has recently been argued that a group of five monuments at S. Omobono were part of a single building program, attributed to the Roman consul M. Fulvius Flaccus in 264 BCE, a program that also included a monument at Orvieto, loc. Campo della Fiera. The monuments in question include two altars, a circular ‘donarium’ and fragments of two bases carrying inscriptions of a M. Folvios, all at S. Omobono, and a trachyte donarium or altar at Campo della Fiera. Evaluating this suggestion provides an opportunity to re-examine the monuments at S. Omobono individually and on their own terms, before being brought into comparison with the Campo della Fiera monument. The evidence does not support the hypothesis of a single building program for the five Roman monuments as a group nor for the inclusion of the Orvietan monument in such a group.