Well look at Madina. That realm died because of treason from within, prompting all of their lords to change allegiance to Fissoa. But the Madinan nobles were still about and eventually they seceded to form a new realm, with the name of Madina, exactly where the old realm of Madina had been. There's nothing wrong with that 
I actually think this is an example of a terrible recreation.
The realm was finished off in a bloody seccesion war against the seceeded Aurvandil which was plagued by serious multi cheating(same people as Thulsoma, Averorth etc they used multis to harvest gold and sent it all to one place raising massive armies between 20 and 40 K CS at certain points in regions like Valkyrja which made about 200/300 gold ).
It was actually a vary sad moment in BM, or atleast for me as (co) founder of Madina.
The new Madina was founded by some old members (atleast two if i recall correctly), but didnt have anything to do with Madina.
It didnt share culture or the way the realm was designed, they actually went for the complete opposite.
The founders of the new Madina wherent creative enough to come up with their own name and flag and thus used that of the old Madina.
Wiki pages all kept refering to the old Madina and the new Madina became an empty husk of a relam build around a single ruler/Duke with no background, code of law or anything which it still is.
In contrast, the old Madina was put allot of work into and had a very unique style of governance that isnt like anything else in BM.
The new Madina didnt adopt all that because it was a very decentralized system and wouldnt allow for a single character to have all the power like now.
