Major Events
- May 20 Second Battle of Lincoln fought near Lincoln, England, resulting in the defeat of Prince Louis of France by William Marshal, 2nd Earl of Pembroke
- Aug 18 First historical record of Scottish scholar Michael Scot, signs and dates his translation of al-Bitruji's "On the Sphere" in Toledo, Spain
- Aug 24 Battle of South Foreland: English fleet beats France
Who Died in 1217
- Feb 18 Alexander Neckam, English theologist and encyclopedist, dies at 59
- Apr 23 King Inge II of Norway (b. 1185)
- Aug 24 Eustace "the Monk", French buccaneer, dies in the naval Battle of Sandwich
- Sep 10 William de Reviers, 5th Earl of Devon
- Sep 21 Lembitu of Lehola, Estonian military leader who led resistance during Livonian (Northern) Crusade, dies at the Battle of St. Matthews Day
More 1217 Deaths
Genghis Khan