Messenger Jenning de Sanger had to deliver mail across 350 km of hostile territory in 1574

In 1574, following the Spanish capture of Haarlem, Jan Jansz (known as Jenning de Sanger) was appointed as a merchant messenger to deliver mail across 350 km of hostile territory to Douay. This appointment continued Haarlem's long-standing tradition of utilizing specialized messengers to manage official and commercial correspondence.

