DE would be: „Zitat“. »Zitat« is also allowed. «Zitat» is mostly used in Switzerland and Liechtenstein. Note missing spaces compared to French.
(Edited after correction from user bloak below)
(Edited after correction from user bloak below)
I thought you made another mistake here, but it turns out it's just my font that is broken. For anyone else who might have this problem: The closing marks are supposed to go from bottom left to top right, whereas they are displayed going from top left to bottom right :(
I think it's «...» in Switzerland, while »...« is widely used in several countries, including Germany, and is the "main" system arguably only in Denmark.
See https://jakubmarian.com/map-of-quotation-marks-in-european-l...