Born in Shirok, Mandalore as the only son to Munro Barec, a former Cuy'val Dar and later instructor at the Imperial Royal Guard Academy on Yinchorr, Ronan grew up under strict Mandalorian training. He was mostly brought up by his mother Belaya in his early years, before his father retired after the Battle of Endor. Shortly after Ronan turned six, his mother died and Munro made his son's upbringing and training his main focus. The fact that his father had been a more military-oriented Mando and a special troops instructor twice in his life made Ronan's combat training a more drilled one as compared to others, and he would later indeed live up to his father and choose a career as a commando.