Mystery of Patrick Sarsfield’s grave may finally be solved Independent.ie 16/02/2021 Allison Bray Officials from France and Belgium believe they may have solved the mystery of the final resting place of Irish war hero Patrick Sarsfield after more than three centuries. Sarsfield, the First Earl of Lucan, was killed during the August 29, 1693 Battle of Landen or Neerwinden in Belgium during the Nine Year’s War but his remains have never been found. An estimated 12,000 Jacobite soldiers and their families fled to France from Ireland under Sarsfield’s command following the siege of Limerick in 1691 as part of the terms agreed under the Treaty of Limerick.