24 фев. 2020, 18:0424.02.20
It is like renaming your town.
You go into the Citadel then to the Town Hall and select Profile. If you have the ability to change the name you will see the letter A after Order Citadel like 2nd picture here
http://support-portal.plarium.com/en/throne-web/faq/order-citadel/description
Click on the A to change the name.