  One major reason for the interest in intentionality in medieval philosophy is that it has been widely recognized that Franz Brentano was reviving a scholastic notion when he introduced intentionality as “the mark of the mental” (Brentano 1874). But Brentano never used the terminology of representation to explicate intentionality. This was done much later, in post-Wittgensteinian philosophy of mind. In later medieval philosophy, it was, however, standard to explain the content of a thought by referring to its representational nature.