Final answer:
The master of orchestration who learned from Berlioz's book, wrote "Principles of Orchestration", and re-orchestrated works by his colleagues to make them sound more "European" is Nikolai Rimsky-Korsakov.
Step-by-step explanation:
The master of orchestration who learned from Berlioz's book, wrote "Principles of Orchestration", and re-orchestrated works by his colleagues to make them sound more "European" is Nikolai Rimsky-Korsakov. Rimsky-Korsakov was a Russian composer who was heavily influenced by Berlioz's orchestration techniques and he wrote the influential book "Principles of Orchestration" which is still used as a reference by composers today. He also re-orchestrated several works by other composers to give them a more European sound.