Luitpold Karl Joseph Wilhelm Ludwig, Prince Regent of Bavaria, was the de facto ruler of Bavaria from 1886 to 1912, as regent for his nephews, King Ludwig II and King Otto. His regency arose due to his nephews' mental incapacity.

The Kingdom of Bavaria was a German state that succeeded the former Electorate of Bavaria in 1806 and continued to exist until 1918. With the unification of Germany into the German Empire in 1871, the kingdom became a federated state of the new empire and was second in size, power, and wealth only to the leading state, the Kingdom of Prussia.