Medieval Christian polemicists could not grasp Muhammad’s orderly rotation system for wives
Evidence
The better explanation, that Mariyah took, not Hafsah’s bed, but Hafsah’s or. ‘A’ishah’s day in the rota was never mentioned; in fact the mediaevals do not at all seem to have grasped the Prophet’s rotation system for Wives; they may not have believed that his disordered passions (as they conceived them) could be so orderly (but see note 67). — Norman Daniel, Islam and the West, 2092