sentences:  In 1917, his head was photographed.Peter Englund asserted in his essay "On the death of Charles XII and other murders" that the mortal wound sustained by the King, with a smaller exit wound than entry wound, would be consistent with being hit by a bullet with a speed not exceeding 150 m/s, concluding that Charles was killed by stray grapeshot from the nearby fortress.Charles was succeeded to the Swedish throne by his sister, Ulrika Eleonora.