Hadrian (Latin: Publius Aelius Traianus Hadrianus Augustus 24 January, 76 AD – 10 July, 138 AD), was Roman Emperor from 117 to 138, succeeding Trajan. He re-built the Pantheon and constructed the Temple of Venus and Roma. He is also known for building Hadrian's Wall, which marked the northern limit of Roman Britain. In addition to being emperor, Hadrian was a humanist and was philhellene in most of his tastes. He was the third of the Five Good Emperors. His wife was Vibia Sabina.
In 138, Hadrian resolved to adopt Antoninus Pius if he would in turn adopt Marcus Aurelius and Aelius' son Lucius Verus as his own eventual successors. Antoninus agreed, and soon afterward Hadrian died at Baiae.Hadrian in Wikipedia