During the reign of Antoninus Pius (138 to 161), the concord between him and Aurelius was complete; Capitolinus (c. 7) says "nec praeter duas noctes per tot annos mansit diversis vicibus."
Two of these buildings were granaries, and indicate the importance of Corstopitum as a base of the northward operations of Antoninus Pius.
Hadrian adopted, as his successor, Titus Antoninus Pius (uncle of Marcus), on condition that he in turn adopted both Marcus (then seventeen) and Lucius Ceionius Commodus, the son of Aelius Caesar, who had originally been intended by Hadrian as his successor, but had died before him.
The full name he then bore was Marcus Aelius Aurelius Antoninus, Aelius coming from Hadrian's family, and Aurelius being the original name of Antoninus Pius.
A better guardian than Antoninus Pius could not be conceived.
