These plaques read:
1) SARLOTA ZIZALOVA nee FREUDENFELDOVA
born 1911, deported 1942 to Terezin, died 1943
2) MIREK ZIZALA
born 1938, deported 1942 to Terezin, died 1943
3) RUDOLF FREUDENFELD
born 1903, deported 1942 to Terezin, died 1944
4) ADELA FREUDENFELDOVA
born 1881, deported 1942 to Terezin, died 1942
The plaques have been placed outside the residences of those who were deported to the concentration camps during the Holocaust as a reminder of those who were killed and that they aren't just names on a list somewhere but they were here, this is where this family lived and spent their lives together.
Particularly in Germany there seems to be a theme of making what happened in history into a constant presence to serve as reminders to it's people of what happened. In Berlin there are many memorials dedicated to the victims of the Nazi regime sitting on nearly every street so it is unavoidable for a person to go about their day without being constantly reminded of what happened. These plaques are also a part of this as they make sure that remembering the victims is a part of daily life, they are not to be forgotten.