Telessar was born in Kyonin and practiced the art of the blade singer. Yet as his prowess grew and his proclivity for dealing lethal damage rather than subdual even to his kin, he was "invited" to take an "extended (permanent)" adventure into the outside world. He could by all means write back to Kyonin and inform his kin of the wild lands, (so long as he didn't return). It was of course a good way to keep track of him without having to spend individual effort.
His first trip into the wilds drew him to Brevoy. Where he spent a dozen years in the service of a swordlord. Although the martial prowess was not up to his "standards" Telessar was most impressed with the Aldori dueling sword. As such Telessar eventually learned to forge the blades and made one for his very own. After his term of service ended, he roamed Golarion looking for trouble.
He found it within Varisia. The people were rowdy, crude, and constantly tested each other's skill in perception and swordplay. They often called upon Telessar to duel this or that person, as his skill in the blade seemed "magical." Telessar of course enjoyed the coins and the chances to test his mortality. Eventually one of the "bosses" asked him to take a tour of Absolom and "do a little work" from time to time.
As long as there is someone that needs mortality, Telessar is happy to oblige. Having recently acquired Seeker Status - Telessar has joined the Eben Glade with the purchase of a country Estate in Western Westgate.