Aemond Targaryen - second son of the mad king

Without remembering his old name, a person of the modern era waking up in a new body in the world of GOT, a character that didn't exist, Aemond Targaryen the second son of the mad king, in the middle of Robert's rebellion with the arrival of Tywin Lannister in the capital and soon killing his entire lineage, in this difficult scenario, Aemond must seize power and initiate a counterattack and win the rebellion