The Dome is the Latvian Archbishopââ¬â¢s cathedral and a church of the Dome parish. Historically, the Riga Dome was the Livonian Orderââ¬â¢s central cathedral until the disintegration of the Order in 1561. In the medieval period, the Riga Dome Cathedral was the largest and one of the oldest sacral buildings in Latvia and the entire Baltic Region.