Born in Craiova, he was the oldest child of Nicolae Brăiloiu and his wife, Zoe or Zinca (née Vlădăianu or Vlădoianu).
[1] Constantin was married twice: to Coralia Ghica-Brigadier, and then to Ecaterina (Catinca) Hagi Moscu.
[3] In 1838 and from 1841 to 1843, Brăiloiu taught criminal law, civil and commercial judicial procedure at Saint Sava College.
Meanwhile, he steadily rose in the ranks of the nobility: pitar (1841), serdar (1842), paharnic (1847), clucer (1850) and aga (1855)—in other words, from ninth in the hierarchy to fifth.
He was an incisive journalist, as attested by his contributions to Conservatorul Progresist, Unirea, Desbaterile and Timpul.
His first stint in this office was in April–May 1861, covering Wallachia alone; then, from January to June 1862, he served in a unified government for all Romania.