Kingdom of Arles

The Kingdom of Burgundy, also known as the Kingdom of Arles, was a realm established in 933 by the unification of Lower Burgundy with the Upper Burgundy. As an independent kingdom, it was ruled by monarchs from the Elder House of Welf until 1032, when it was incorporated into the Holy Roman Empire, becoming one of the empire's three constituent realms, together with the Kingdom of Germany and the Kingdom of Italy. By the 13th century it went through the process of feudal fragmentation, and since the 14th century the imperial rule over the kingdom became mainly nominal, weakening further during the 15th century. Its territory stretched from the Mediterranean Sea in the south to the High Rhine in the.