See Perry (p. 150), Riley-Smith (p. 237, Baybars ... murdered Qutuz"), Amitai-Preiss (p. 47, "a conspiracy of amirs, which included Baybars and was probably under his leadership"), Holt et al. (p. 215, Baibars "came to power with [the] regicide [of Qutuz] on his conscience"), and Tschanz.