Rogaška Slatina (; ) is a town in eastern Slovenia. It is the largest settlement and the seat of the Municipality of Rogaška Slatina. It is known for its curative mineral water, spa, and crystal glass. Name The name Rogaška Slatina literally means 'Rogatec springs', referring to a source of mineral water. The springs were dubbed Roitschocrene 'Rogatec springs' (< Greek κρήνη crene 'spring') in 1687 by Johann Benedikt Gründel. The settlement was known as Rohitsch-Sauerbrunn or Sauerbrunn Curort in German (and in older sources also Roitscher Sauerbrunn). Older sources also contain the Slovene names Slatina Zdravišče and Slatina Rogačka. History The Rogaška Slatina area was inhabited in antiquity, and a Roman road led to the settlement. A document from the Archbishopric of Salzburg dating from 1141 mentions a Roman stone next to a spring in the settlement. The 16th-century alchemist Leonhard Thurneysser was the first to describe the spring. The spring was also described by the imperial physician Paul de Sorbait in 1679, by the Carniolan physician Marko Gerbec circa 1700, and by Joseph Karl Kindermann in his 1798 history of Styria (Repertorium der steiermärkischen Geschichte, Geographie, Topographie, Statistik und Naturhistorie). The historian Rudolf Gustav Puff described Rogaška Slatina in a special publication, and 24 lithographs of the town were created by the artist Josip Reiterer in the early 19th century. The chemist Adolf Režek set up a small chemistry laboratory in Rogaška Slatina in 1931 and published various material about the town. World War II Between 1941 and 1945 Rogaška Slatina was occupied by Nazi Germany. The Wehrmacht's 132nd infantry division entered into health-spa resort on April 11, 1941, only five days after invasion of Yugoslavia. In the following weeks, the occupier's complex administration was set up, who transformed Rogaška Slatina because of its health and glassmaking importance, large accommodation capacity and position along the German-Croatian state border on the Sotla River into one of the key outposts of the Lower Styrian occupation zone. Daniel Siter in his thesis Rogaška Slatina during the period of German occupation (1941-1945) mentions the Croatian Nazi-collaborationists Ustashe (slov. Ustaši) 41 times, their presence during that time as well as their ravaging in the area well after WW2. Mass graves Rogaška Slatina is the site of two known mass graves from the period immediately after the Second World War. The Sovinec Ravine Mass Grave () is located in the southeast part of the