Fourth Alethi Occupation
345EOS
392EOS
Alethkar reclaim control of the Herdaz territory, however they installed the Herdazian royal family as the new territory ruler.
Alethkar reclaimed control of Herdaz, and held onto it for another 47 before Herdaz became a sovereign nation again. in the 390's, the Vorin church began enacting the initial phases of fully taking control of the entire continent. This included destabilizing the Alethi government in order to take control. During the destabilizing process, Alethkar rescinded control of Herdaz in order to focus on internal affairs, which lead to the royal family taking full control of the government.
The world of Roshar, and a number of the characters within this setting are from the Stormlight Archive series, which is written by Brandon Sanderson. These characters and this setting belong to him, and I do not claim to own these characters or setting. We are merely playing within a world that he created.