Just following up on my post from yesterday, I decided to do the very simple math and calculate the number of days it would take for you to attain enough Royal Crests through city sieges in order to complete your Sovereign set. With having a lockout timer of 5 days, it would take you 705 days and 141 instances to complete your set. Now obviously you can obtain Royal Crests outside of the cities, but not really that many.
