His family are members of the nobility (probably lower nobility) due to their success as merchants (unsure of what specifically at the moment; if there is something specific that would fit especially well, by all means suggest it, otherwise I'm probably just going to be going with them being arms merchants)
The third son of his parents (his brothers' names are Charles and Benedict), he could never expect to be have much control over the family business, and even if he could, he found it rather uninteresting and dull, and so he suggested to his parents that perhaps he should find an alternative for himself
They agreed and while Robert was hoping for a stipend to go off and explore the world with, perhaps do this "adventuring" thing that so many are doing nowadays, his parents had another idea: Using some of their military contacts, they got him into the RHC, working as an investigator
Surprised by this turn of events, he decided to make the best of his situation, and while he is trying to make his own name for himself in the RHC, he still does not want to hurt the family name, and if he might be able to prove himself valuable to his family while in the RHC, that would be a bonus
Progression Notes:
Take 1 level in Rogue (Acrobat) for the skill points...
Magic Item Enchantments to get:
http://www.d20pfsrd.com/magic-items/magic-weapons#TOC-Agile
Feats: Point Blank Shot, Precise Shot, Piranha Strike, TWF chain, WF