Termen XVII was a Robloxian noble of Noobish origin and king of Brookhaven. He was son of Termen XVI and brother of queen Isla I. Termen XVII founded few cities in present-day Kionne Republic.
In 1651, Termen XVII's father died fighting a Korbloxian warrior. The throne should be inherited by Termen, but his uncle Ezekiel II cleverly took advantage of his nephew's absence to seize the throne. Termen was crowned king in 1656, after his uncle died of illness.
When Termen heard that Isla I fell in love in Korbloxian named Jimmu, he immediately went to warn her that Jimmu can be dangerous, but she did not listen to him. After Isla's death caused by Jimmu, Termen XVII decided to avenge his sister. He assembled a large army at Kionne with the help of Bobo II of Duckhaven and then set out to join his nephew at Redcliffs, thus marking the beginning of the Jimmu's War. In 1681, Jimmu was besieged in his fortress by Termen XVII and John I (Isla I's grandson). He committed suicide to avoid falling into enemy hands, knowing that Termen would kill him.
He fell ill in 1690. Termen was in poor health and died next spring/summer. He was succeeded by his grandnephew, John I, who also became the King of Redcliffs in 1700.