This paper attempts to give a survey of the origin of the present collection of some forty works of Grotius in the present Scientific Library of Olomouc. After a short introduction about education in the Czech lands and especially in Olomouc, the present works of Grotius are discussed in connection with their origin. Most works were added to the collection due to the Josephine abolition of monasteries in the 1780s. Premonstratensian and Cistercian monasteries were the most important former possessors. A couple of Grotiana were donated by noblemen. A look is given to some course books that have been preserved. A complete list of all works of Grotius printed before 1800, present in the Scientific Library with an identification of their owners, is given in the annex.