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In page Languages of Europe:

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The first languages whose standardisation was promoted included Italian (questione della lingua: Modern Tuscan/Florentine vs. Old Tuscan/Florentine vs. Venetian → Modern Florentine + archaic Tuscan + Upper Italian), French (the standard is based on Parisian), English (the standard is based on the London dialect) and (High) German (based on the dialects of the chancellery of Meissen in Saxony, Middle German, and the chancellery of Prague in Bohemia ("Common German")). But several other nations also began to develop a standard variety in the 16th century.[citation needed]