Artist Sarah Ketelaars created 544 cyanotypes as a memorial to 544 psychiatric patients murdered by the Nazis in 1941 in Latvia. Each cyanotype represents a man, woman or child killed.
Sarah writes: 'My grandmother was working at the hospital from where the patients were taken. I have visited the hospital and found that although the story is known no memorial exists. The only official record seems to be a short paragraph in the Nuremberg report. So far I have found no record of the names.