Six was born "Cecilia" to a half-elven father (Halyon) and a human mother (Maria), which lead to her appearance taking on something more human despite her elven blood. Her mother died when she was two years old, leaving Six alone with a father who wasn't particularly good at taking care of her - until he met another woman who became a step-mother figure for the young girl. Corellia was Adalia's mother who, the first time she was hit by Halyon, decided to run away with her daughter, unable to bring a toddler with her.
Left alone with a drunken father and a house to take care of, Six was forced to grow up fast. Her father was the scorn of their village, well known for being violent in addition to his drunkenness, and Six had to do whatever she was capable of to earn enough money to eat and survive, since he was incapable of holding a job for any length of time. His frustrations were taken out on his daughter who, with nowhere else to turn, had to suffer under his abuse until she was old enough to try and muster the strength to leave. During the little free time she had she trained as much as she could, learning from local soldiers and guards, so that she would be able to defend herself from her father and from the world, so that no one could take advantage of her again.
Sick of being stuck in a desperate situation, she fled town when she hit fifteen years old, before she had hit maturity, abandoning her father and her heritage. She began to search for work to keep herself fed, lying about her age, until she became part of a mercenary group at the age of seventeen. She travelled with them for three years; as a group they trained, worked for gold and spent most of their time doing whatever jobs were offered to them. Six became an adept two handed fighter, finally hitting her half-elven maturity.
It took four years of work as a mercenary before she met Adrian Rowan, who recognised her helplessness and the frustration she felt - specifically, her need for a purpose - and decided to take her under his wing to tutor her in the hopes that she would one day follow him and become a Paladin. He was a dedicated and calming influence on the volatile and frustrated young woman that Six had become and helped her to recognise that her anger was not the best means of fighting and growing - that there was a better purpose out there, something that would make her a stronger fighter and a boon onto the world. He gave her the inspiration to be better than the home she had come from and a better person than her father had ever been.
Adrian was this man who gave Six her nickname; although she introduced herself by her birth name, Cecilia, when they were playing together Adrian often rolled sixes. He told her that she must be her lucky charm, and so she adopted the nickname 'Six' both to match it and to abandon the person - and history - she had held before. Her dedication to him as her teacher was unrivalled and she was dedicated to her studies, her education and her strength, growing in power and learning more about the Gods of the world, those that she might give an Oath to and what the nature of being a Paladin might mean.
Six and Adrian travelled together for about a year and a half, where Six was taught about what it meant to become a Paladin without becoming one; she never reached the point where she felt confident enough to take her Oath. Over that time, Six began to fall in love with Adrian, but was reticent about her feelings. She had not lived a life that made her confident in anything romantic or as gentle as the emotions she felt towards Adrian were and she was loathe to risk their friendship for something that she wasn't certain about - she had no faith that Adrian might feel the same towards her.
It was late in their friendship that she admitted how she felt, with Adrian saying he felt the same. The two of them agreed that they needed to move beyond their student-teacher relationship before they could do anything together and that Six needed to become a Paladin in her own right, growing as her own person, before they could make anything of their feelings. Six agreed, and they promised to continue as they were without the pressure of questioning their own emotions.
Two weeks later, they were attacked by drunken bandits. Unable to use any Paladin abilities yet, all Six had was her sword and her strength, with Adrian using his divine powers to try and fight them off. The fight was a hard, bloody one, and ended up proving deadly for Adrian; he was murdered, with his sword breaking as a result of the battle. As Six tried to protect him she was cleaved across her back. Left for dead, she was abandoned with Adrian's dead body the only thing she could see and focus on. It was then that her deity came to her in her time of absolute helplessness; Six took an oath and came into her power as Paladin, determined to protect the way that she had failed to protect Adrian.
Six began trekking across the world to try and find Adrian's home so that she could leave the hilt of his sword with whatever family he had left. She labeled herself 'Six' still, but considers herself named something like a widower; she and Adrian were never married, but they shared a promise that was equal to marriage in her own mind, one that was only broken by death. Thus, she took on the surname Rowan and abandoned the one that her father had given her to the past.
During her travels she was visited by Sarenrae, who told her that there was a woman she needed to meet who was an important figure in her life, one who needed to be brought back to the light and have the darkness prevented. Six travelled across the world to find this woman and stumbled upon her, drunk, in a clearing; Adalia. Her sister. The two of them travelled together for a short while before they came across a Seer who, after reading them both, joined the two together through a linked hometown; Six had found her sister and Adalia had found her family.