Kaha IX

Kaha IX, era name Kerukunan (May 18, 1904 – February 16, 2000), birth name Yacob Ibrahim Osman al-Mustafa ibni Abdul Ahmed Kabir was the ninth and final king of the Cahaya dynasty. He ruled from 1916 to 1920, and was the shortest-reigning king of the dynasty.

Kaha IX's legacy in Cadasa is largely positive. Although he was loyal to the dynasty and monarchy, Kaha understood that things had to change in order to preserve the dynasty. His attempted transition of the country into a constitutional monarchy was foiled by brother TBA and Kaha VIII consort TBA. They placed him under house arrest in 1918, and the dynasty fell 2 years later.

Reign (1916-1920)
On March 1, 1916, Kaha VIII died, and Kaha XI, the eldest son, became king. During his rule, he developed a plan for a legislature, created the office of prime minister, and engaged in talks with republicans to help the Cahaya dynasty transition into a constitutional monarchy. This enraged the conservatives, and Kaha XI brother TBA and consort TBA placed him under house arrest in 1918, making him powerless. The dynasty fell 2 years later.

Later life
Kaha XI, now known by his abbreviated birth name Yacob bin Abdul Kabir, was elected to the Cadasan People's Assembly in 1939. He served as the Minister of Culture from 1939 to 1945.

On February 16, 2000, Kaha XI died of natural causes in his home.