Several North German free imperial cities set up their own slave funds which existed until the mid 19th century.
[citation needed] In 1725, seafarers and shipowners in neighbouring Denmark-Norway had to make compulsory contributions to a ransom insurance.
The assets of the Hamburg slave fund were supplemented by regular collections in the city's churches[2] and also relied on private donations.
With the decline of Lübeck's direct shipping connections to the Mediterranean sea, the city's slave fund was highly liquid from the 18th century onwards.
[6] The last ransom payment was made in 1805, while its remaining assets afterwards were used to pay the Sound Dues (1857) and to fund the city's customs authority.