Lucius Calpurnius Piso Licinianus is appointed by Galba as deputy Roman Emperor.

AD 69 (LXIX) was a common year starting on Sunday of the Julian calendar. In the Roman Empire, it was known as the Year of the consulship of Galba and Vinius. The denomination AD 69 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Lucius Calpurnius Piso Frugi Licinianus (38–69) was a Roman nobleman who lived in the 1st century. His adoption by the Roman emperor Galba on 10 January 69 AD precipitated their joint murder by Otho, who had expected to be adopted instead. Otho then became the second emperor of the Year of the Four Emperors.

Galba was Roman emperor, ruling for 7 months from 8 June AD 68 to 15 January 69. He was the first emperor in the Year of the Four Emperors and assumed the throne following Emperor Nero's suicide.

Caesar is a title of imperial character. It derives from the cognomen of Julius Caesar. The change from being a surname to a title used by the Roman emperors can be traced to AD 68, following the fall of the Julio-Claudian dynasty. When used on its own, the title denoted heirs apparent, who would later adopt the title Augustus on accession. The title remained an essential part of the style of the emperors, and became the word for "emperor" in some languages, such as German and Slavic.

January 10 is the 10th day of the year in the Gregorian calendar; 355 days remain until the end of the year.