A non-standard transliteration. The Czech capital Prague is conventionally rendered
布拉格 in PRC writing, so when you see
普拉格 it's almost always a personal name (Pragg/Prager/Plagg) rather than the city. Sound-by-sound:
普 ('general') = 'Pra-',
拉 ('to pull') = '-la-',
格 ('pattern') = '-g'.