Luitpold's years as regent were marked by tremendous artistic and cultural activity in Bavaria where they are known as the "Prinzregentenjahre" ("The Prince Regent Years"). In 1912, Luitpold died, and his son, Prince-Regent Ludwig, took over as regent. By then, it had long been apparent that Otto would never be able to reign, and sentiment grew for Ludwig to become king in his own right. On 6 November, a year after the Landtag passed a law allowing him to do so, Ludwig ended the regency, deposed Otto and declared himself King of Bavaria as Ludwig III.