Ober-Laas was formerly part of the German Empire. In the German Empire, the place was called Horní Láz.
The place is now called Láz * and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ober-Laas | Austro-Hungary | Blatna | before the Treaty of Saint-Germain |
| Horní Lázy | Austro-Hungary | Blatna | before the Treaty of Saint-Germain |
| Horní Láz | Czechoslovakia | Blatná | after the Treaty of Saint-Germain |
| Ober-Laas | German Empire | Blatna | 1939 |
| Horní Láz | German Empire | Blatna | 1939 |
| Horní Láz | Czechoslovakia | Příbram | 1945 |
| Láz * | Czechoslovakia | Příbram | 1992 |
| Láz * | Czech Republic | Příbram | 1993 |