KnowraMerciaLinked fromLinked fromThe 13 pages that link to Mercia, each with the reason it gives.All 13Broader topic 3Related 6Narrower topic 2Compared with 2Kingdom of NorthumbriaCompared with: Mercia became Northumbria’s chief southern rival as the balance of power shifted.Kingdom of East AngliaCompared with: Mercian dominance repeatedly constrained East Anglia’s independent kingship.