Regular sessions started in 1288 and met alternately in Brno and Olomouc (both cloisters of the Dominican Order).

On September 19, 1848, this assembly adopted the Moravian Constitution (German: Der Ferfassung für das Markgrafthum Mähren, Czech: Zřízení pro Markrabství Moravské).

Despite the deadlock in the language dispute between Czechs and Germans, a compromise acceptable to both sides and allowing a harmonious coexistence was found here.

Although, by the acceptance of this franchise reform, the Germans lost their previous majority in the Diet, they gave their consent to the changes in the interests of public peace.

Politically speaking, the Margraviate of Moravia was an Austrian crown land, with the highest administrative authority being vested in the governor at Brno.