Born to a Caldari mother, and a Gallente Father, D'argent has always been stuck between two worlds - that might be why he left planet-side as soon as he could, to find his place among the stars.
What you can decern from rumour is that he grew tired of the life of a corp-drone and struck out on his own in the company of a few hard-won friends. Drawn to fight for a cause he joined the Caldari Militia, where he learned a lot. A little too much, as he became disillusioned with the cause and decided to strike out, fighting on his own terms.
Records get a little spotty after that, but indications show that he flew with the Northern Collation, and he found himself engaged in some of the hottest conflicts of the ongoing alliance wars. News began to filter slowly, especially out in the far reaches of nullsec, that the Nation has become more and more active, taking millions of innocent civilians of all races prisoners. This clarion call drew him back to Empire space and a new cause.