The world usually forgot about the names of cultivators that had earned titles through their lives, and only the organizations behind them kept track of them.
It couldn't be helped. Most cultivators gained a title after they reached the fifth rank or above, and the world would acknowledge their existence only at that point. Beings like Noah were rare since most human cultivators usually couldn't affect the political situation outside of their nation.
For example, the world had forgotten real names of the Demons long before the defeat of the demon sects, and there weren't many cultivators that knew them even inside the Hive. That phenomenon appeared more often in the Empire since the god would bestow a title to every heroic cultivator.
However, Noah and the others didn't have any doubt when they heard the words of the will. The only existence that could carry the name "Shandal" was the god of the Empire himself.