Holocaust victims
In 1936, the Nazis began deporting Roma and Sinti people, first to areas on the outside edges of cities, and later to the same ghettoes that Jews were sent to.  In 1942, Heinrich Himmler ordered that the Roma and Sinti people (including children) should be sent to Auschwitz concentration camp.  The Nazis also sent many Roma and Sinti adults and children to other death camps, like Bełżec, and to other concentration camps, like Ravensbrück.