Mahukai

Mahukai XXXXXX was the eldest son of Torkai Ul-Tash, and rode at his father's side in countless battles as the unstoppable Suagir horde swept across Orithea. He was one of the All-Conqueror's most capable lieutenants and was renowned as a formidable battlefield commander. However, in 920 CV, he rebelled against his father and sought to seize Torkai's vast conquests for himself. This precipitated a brief, but large-scale, factional conflict between the Suagirs in Urem and on the steppes themselves. In the end, Mahukai was betrayed by his own followers and delivered as a prisoner to his father, who personally executed him by crushing his skull with his mace. The same mace with which Torkai carried out this deed is still the scepter wielded by the Tash-Teshivan of the Kirdan Empire as part of his imperial regalia (albeit now lavishly gilded and jewel-encrusted, each of its iron spikes tipped with priceless pearls in silver settings).
Had Mahukai remained loyal and outlived his father, he probably could have expected to inherit the domains which instead went to Torkai's second son and became the Kirdan Empire. Instead he is remembered as a would-be usurper and a failed rebel.