For a short time, he served as Chairman of the Council of Ministers of the Kingdom of Bavaria.
[2] After completing secondary school, he studied law and philosophy at the Ludwig Maximilian University of Munich from 1826 to 1831.
[4] Neumayr returned to Munich in 1859 to become Minister of the Interior in the cabinet under Karl von Schrenck.
During the ministerial crisis of 1864, he temporarily also administered the Ministry of the Royal Household and Foreign Affairs (which included the chairmanship of the Council of Ministers), following Karl von Schrenck’s departure.
That crisis eventually ended with the reappointment of Ludwig von der Pfordten to that position on 31 December 1864 and led to Neumayr’s resignation (tendered on 4 November 1865) as Interior Minister.