The Duchy of LOCATION@1 and Semigallia -LRB- , , , -RRB- is the name of a duchy in the LOCATION@2 region that existed from NUMBER@1 to NUMBER@2 as a vassal state of the Crown of the MISC@1 Kingdom and later the MISC@2 Commonwealth .

The Duchy of LOCATION@1 and PERSON@1 was a duchy in the LOCATION@2 region .
