Siofran is the second child and oldest daughter of Primrose Breckenridge, a constable in Bree, and Daerdan son of Daemirdan, a Dunadan ranger. She has five other siblings. At the age of 18 she left Breeland to follow her father and older brother into the wild. She has spent the past six years traveling Eriador honing her skills as a ranger.

Siofran is a ranger by training and a Breelander at heart. She is intelligent, compassionate, and (for the most part) sensible. She considers compassion one of her stronger traits since courage is nothing if it isn't tempered. Siofran possesses a strong sense of duty. Her temper is generally long, but she is capable of berserker-like rage. This has become more frequent thanks to the War of the Ring. Siofran's family is a very important part of her life and she makes a point of visiting her mother and younger siblings whenever she passes through Bree. None of them know the full truth about her personal problems, most of which she refuses to acknowledge.

She is a very capable artist and regularly draws and writes in a small notebook hidden at the bottom of her pack. In addition, Siofran possesses a keen interest in history and is fluent in Westron, Adunaic, and Sindarin. She can read some Quenya, but cannot speak it. Her accent is distinctly Breelander, but she takes great care to mask it when dealing with people who aren't in her immediate family.