However , Senusret II 's monthly figure on the throne might be ascertained .
This would entail amending the 19 - year figure which the Turin Canon assigns for a 12th dynasty ruler in his position to 9 years instead .
Senusret II 's monthly figure on the throne might be ascertained .
This would entail amending the 19 - year figure which the Turin Canon assigns for a 12th dynasty ruler in his position to 9 years instead .