Lyda established itself as a country in 760. The country is ruled by a council of mages, with the senior most being named High Mage. As mages do, they tend to live a long time, so even though they generally take office at a mature age, their terms are generally long.
760-815 - Slaine
815-875 - Rudraige mac Dela
875-922 - Gann and Genann
922-971 - Sengann
971-1044 - Fiacha Cennfinnán
1044-1081 - Rinnal
1081-1145 - Fodbgen
1145 - present - Eochaid mac Eirc