 The other, possibly the niece of the first, was tried by the Senate for immorality.Ronald Syme speculates her family the Vistilii, also spelled Vestilii, came from Umbria, and lists several inscriptions bearing the names of its members from that region of Italy.Her brother was probably Sextus Vistilius, a former praetor, who was a close friend to the Roman General Nero Claudius Drusus, the younger brother to Roman Emperor Tiberius.