Trajan senior was born in Hispania into a Roman family of Italian stock. His paternal ancestors moved from Italy and settled in Italica (near modern Seville, Spain) in the Roman Province of Hispania Baetica.
He was the first member of his family to enter the Roman Senate. Some time before 67, Trajan Sr. may have commanded a legion under the Roman General Gnaeus Domitius Corbulo. Under the future emperor Vespasian (who was at the time the Roman Governor of Judea), he commanded the tenth legion, Legio X Fretensis, during the First Jewish–Roman War between 67-68. During this time, he came into favour with the future emperor.
Due to his successes, Vespasian awarded Trajan Sr. the governorship of a province, although which one is unknown, and a consulship in 70. In later years, he served as a Roman Governor of Hispania Baetica, Syria, in 79 or 80 governed an unknown African province and then western Anatolia. During his time in Syria, he prevented a Parthian invasion.
Coins depicting Trajan’s natural father are difficult to find. The most cost effective way of acquiring a coin of this Roman personality is to get one which shows him seated on a curule chair on the reverse honouring him post mortem with the legend DIVVS PATER TRAIAN. The above coin is for sale and can be purchased by following the link to Mauseus on vCoins HERE.