Vincent e'Kieron is my main...
The name e'Kieron was taken from a group of books written by a Master Storyteller named, Steven Brust. He writes a series of books based on an Assassin named Vladimir Taltos. Aliera e'Kieron is a friend of Vlad's in the books. However, the e'Kieron name, line, and lineage traces back to the creation of the society that Vlad lives in.
Back in 1995, I rolled up a PnP elf character named Glorvin D`el. He began as a Ranger. His story was that he was an orphan and taken into the elven village when he was a small child. As he got older, his red hair and large stature stuck out heavily in a village of blond haired 5'2 elves. Glorvin, standing almost 6'0 and with darkened burned red hair stuck out terribly, so he left the village in seek of his true heritage.
Over the course of five years playing the same character through countless PnP adventures (as well as a few others here and there) he married a woman named Adrina who had draconic blood, found out his parents were ancient Elf/Dragon folk, started a kingdom and began a line of his own.
Years went by and it turned no luck on his heritage. He had already left his elven name in the dust many years ago, but still those from his village knew him by that. He met a powerful wizard named Lanthanlas from a land called Dominaria, where Vincent later built his kingdom with Adrina. Lan had lost a child named Vincent years ago to a tragic accident, thus after years under Lan tutelage, Glorvin honored Lan by taking the name of his dead child, hence Vincent was born.
Vincent learned the arts of Assassination first from a man named Mario Greymist and his arcane arts from Lan. Thus the Ranger/Rogue/Wizard Tri class Vinnie has on CoPaP. Years later, during a battle to save Waterdeep from a Demon called The Gorgon who had come to Faerun through the Great Rift from the Birthright campaigns, Vincent met a Celestial named Ex'Zeer who knew of Vincent's heritage. Ex'zeer is my DM avatar on Hala.
Vincent's heritage led him to find that he was decended from Kieron the Conqueror from a distant land called Drageara. (also from the Brust books)
So, in a nutshell, the idea of the name and some fantastic concept ideas came from Brust's books. But the attitude, growing, and classes for the character very much came from original PnP games over the coarse of ten years.
The CoPaP Vincent is almost exactly like the PnP version, only the PnP version of Vincent uses a Great Sword called Blackwand, whereas the CoPaP Vincent uses a rapier and main-gauche.
(Vlad uses eastern style fencing in the Taltos books though.

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-e'Kieron