In the "Shincho Koki" (Biography of the Warlord Nobunaga ODA), since it is described how he withdrew on horseback from Mt. Okehazama, it is possible to consider the common theory of his inability to ride on horseback, as well as its reasons, as all being invented at a later time (Generally these descriptions began appearing in the middle of the Edo period.)
また『信長公記』には桶狭間山から退却する義元が馬に乗っていたと記されており、騎乗ができなかったこと、さらにその理由などは、ほぼ後世の創作と考えられる（一般にこれら記述が登場するのは江戸時代中期の物である）。