He received a good education , mastering various European languages and becoming fluent in Dutch , Russian and German .
Jan grew up in Leiden , living for some time with a Monsieur Luzac , the French born proprietor of a francophone Leiden Newspaper .
Jan received a good education , mastering various European languages and becoming fluent in Dutch , Russian and German .
Jan grew up in Leiden , living for some time with a Monsieur Luzac , the French born proprietor of a francophone Leiden Newspaper .