The Earldom of Chester was one of the most powerful earldoms in medieval England, extending principally over the counties of Cheshire and Flintshire. Since 1301 the title has generally been granted to
Seal of Ranulf de Gernon, 4th Earl of Chester, with legend SIGILLVM RANVLFI COMITIS CESTRIENSIS, "Seal of Ranulf, Count/Earl of Chester."