Sarmatia Asiatica ("Asiatic Sarmatia") was the name used in Ptolemy's Geography (ca. 150) for a part of "Sarmatia", a large region which included parts of Europe and Asia. Another part was Sarmatia Europea ("European Sarmatia"), which was situated further west. European Sarmatia largely corresponds to what was later known as Grand Duchy of Lithuania; later, Intermarium; and nowadays the Three Seas Initiative. Sarmatia was present in most maps of the region from the time of Ptolemy until the end of the 18th century.