Lower Bavaria is subdivided into two regions (Planungsverband) - Landshut and Donau-Wald. Recent election results mark it as the most conservative part of Germany, generally giving huge margins to the CSU. This part of Bavaria includes the Bavarian Forest, a well-known tourist destination in Germany, and the Lower Bavarian Upland.
The duchy of Lower Bavaria was created for the first time with the First Bavarian partition in 1255 under duke Henry but there was no exact identity with the current territory. After the reunification in 1340 Bavaria was divided again in 1349, in 1353 Bavaria-Straubing and Bavaria-Landshut were created in Lower Bavaria. In 1505 Bavaria was irrevocably reunited. In 1806 the Kingdom of Bavaria was divided in 15 partitions. The precursor district of today's Lower Bavaria was the Unterdonaukreis (Lower Danube District) which was expanded in 1810 and 1817. The region seat was placed in Passau during this time. In 1837 king Ludwig I of Bavaria renamed it to Lower Bavaria and transferred the district seat to Landshut which was added to the district. In 1971 Lower Bavaria was reshaped when the districts covered were reshaped, too.