I am very sorry to announce the news that Simo Knuuttila died this past Friday. He served for three decades as a professor of theology and philosophy at the University of Helsinki. During this time, he was a giant figure in the field of medieval philosophy, both as a personal mentor to many scholars and as an inspiration through his many papers and books. This work managed to combine, in an exemplary way, historical erudition and philosophical sophistication. Among his many interests were the history of logic, modality, and the theory of emotions.