Field Marshal John Griffin Griffin, 4th Baron Howard de Walden, KB, was a British Army officer, politician and peer. He served as a junior officer with the Pragmatic Army in the Dutch Republic and Germany during the War of the Austrian Succession. After changing his surname to Griffin in 1749, he commanded a brigade at the Battle of Corbach in July 1760 during the Seven Years' War. He also commanded a brigade at the Battle of Warburg and was wounded at the Battle of Kloster Kampen.

The Battle of Corbach, or Korbach, a Hanseatic town of Waldeck-Frankenberg in northern Hesse, Germany, was fought on 10 July 1760 during the Seven Years' War. Corbach was the first battle of the campaign of 1760 and was a victory for the French over the Hanoverians, the British and their allies.