The Bavarian crown prince whose wedding inspired the first Oktoberfest was Ludwig.
On 12 October 1810, Crown Prince Ludwig of Bavaria married Princess Therese of Saxe-Hildburghausen in Munich. Public celebrations included a horse race held on 17 October outside the city. The race was so successful that it was repeated the following year, establishing the tradition that developed into Oktoberfest.
The original celebration was not primarily a beer festival. It centered on the royal wedding, public festivities and horse racing. The festival grounds were later named Theresienwiese, or “Therese’s Meadow,” in honor of the bride. Bavarians commonly call the site and the festival itself the Wiesn.
Ludwig later became King Ludwig I of Bavaria, but the quiz’s wording refers to his status at the time of the wedding: crown prince. The alternatives are easy to confuse with other Bavarian or royal names, including Ludwig’s son Otto, who later became king. The founding couple were Ludwig and Therese, not Otto, Leopold or Maximilian.