Amtsgericht: (lower) trial court (and registration/registry court), (lower) court of first instance (for civil and criminal matters)
Landgericht: (higher) trial court, (higher) court of first instance
Oberlandesgericht: intermediate court of appeal, appellate court, regional court of appeal
Bundesgerichtshof: court of last resort, highest German court of appeal, Federal German supreme court
Bayerisches Oberstes Landesgericht: highest Bavarian court of appeal, Bavarian supreme court of appeal