[1] As of 2009, there were 100 consulates in Hamburg, ranked the third-largest in the world (after New York City and Hong Kong) and largest in Europe.
The trade and independent striving of the Hanseatic cities of Bremen, Lübeck and Hamburg for the "common German service" were even named in the Westphalian peace treaty in 1648, and the Hanseatic and later Hamburgian consuls during the 16th, 17th and 18th centuries were also representatives for "all fellow Germans".
[5] The Senate of Hamburg often opened a consulate to cities and countries, if a trade post existed, esp.
During the Thirty Years' War (1618–1648) constant diplomatic missions were needed, most of those envoys or residents were Hamburg citizens—only large and most influential states sent own nationals.
[12] Some countries sent their missions from 1815 – 1886, at this time Hamburg was an independent and sovereign state of the German Confederation.