Also in Kozankojiroku, a biography of Takatora TODO, who guarded the Ieyasu headquaters, there is a description of "a great collapse of hatamoto (direct retainers of the shogun)" and Takatora, reviewing the battle, says in the biography that his troop fought back more or less, but was overwhelmed by the Sanada troop, and Takatora himself could not confirm the safety of Ieyasu, who abandoned the headquarters shortly afterward.
また家康本陣を守備していた藤堂高虎の一代記である高山公実録にも「御旗本大崩れ」と記され、藤堂勢は一応の応戦はしたものの、真田隊の勢いの前では効果無く、ほどなく家康は本陣を捨ててしまい、高虎自身も、家康の安危を確認できなかったと振り返っている。