Career
Her marriage was most likely an alliance between the ruling Gaetan house and the Roman aristocracy to secure Gaetan favour in the eternal city, the home of both pope and emperor. The wedding took place before January 998, when Emilia appeared with John at the monastery of Saint Nilus the Younger. Immediately, she and John were opposed by Leo I, cousin of John IV. By October, her supporters had expelled him.
The two disputed the regency and co-undersigned charters until January 1025, when Leo last appears in the Codex Caietanus.
Emilia was the sole regent in a February charter. The Roman Emilia"s politics leaned strongly towards support of the pope and the Lombards against the Byzantine Empire.
In 1012, she allowed Dattus, a Lombard rebel, to garrison a tower on the Garigliano, in Gaetan territory, with papal troops, supplied by Benedict VIII. In 1014, at the Castro Argento, also on Gaetan soil, Emilia and the Bishop Bernard, her brother-in-law, hosted several local leaders: Daufer of Traetto, Pandulf II of Capua, Sergius IV of Naples, Atenulf of Montecassino, and the archbishop of Capua. The convention agreed to an anti-Byzantine policy.
During his stay, Sergius negotiated with Emilia for Gaetan support in retaking his duchy while he conceded to the Gaetans certain rights in travelling in Neapolitan land.
An accord was signed between the rulers in February 1029. lieutenant is unknown when her regency ended.