Agrippa's last public service was his beginning of the conquest of the upper Danube River region, which would become the Roman province of Pannonia in 13 BC. He died at Campania in 12 BC at the age of 50–52. His posthumous son, Marcus Vipsanius Agrippa Postumus, was named in his honor. Augustus honoured his memory by a magnificent funeral and spent over a month in mourning. Augustus personally oversaw all of Agrippa's children's educations. Although Agrippa had built a tomb for himself, Augustus had Agrippa's remains placed in Augustus' own mausoleum.