The Viskorf was being loaded at the roads of the island Goeree (Gorée in Senegal). It is very likely that it concerned enslaved people. On January 31st, 1664, the roads and the fortress were attacked by commodore Robert Holmes and the Viskorf sank. From a book about the life of Michiel de Ruiter:

"Robert holmes, on the thirty-first of that month having claimed the stronghold of Kabo Verde, on the Island of Goederede, and after that bombarded it, and had forced them to surrender on the first of February, with the yacht the Krokodil. And that the night before he had also taken two small ships, the Vischkorf and the Visscher." (see Brandt under references).

In a declaration of two survivors that is found in the Amsterdam City Archives (see references), they mentioned that the Viskorf was shot in the ground and sunk by gunfire from their own side from Fort Nassau. When boats of Holmes attacked the ship in the darkness, they opened fire on the Visser and the Viskorf from the fort. The first ship was taken but sank later, the Viskorf sank on the roads. The fort surrendered the next day because of the bad state of the walls and the lack of gunpowder.

Holmes was surprised by this windfall. His ship had also been heavily damaged and the chance that he could take the fort by force was small. The Dutch lost four ships during the action of Holmes: the Gekroonde Bril, Neptunus, Visser, and the Viskorf. With the surrender, the Krokodil also had to be given over.

Nationaal archief

Slave voyage

According to Slavevoyages.org the Viskorf transported enslaved people (the ship is called Groene Viskorf there) in 1664. 309 people were taken on board on Goeree and takend to Cayenne. 250 of them survived the voyage.

• Amsterdams notarieel archief, Notaris Adriaen Lock > 1664 Oct-1664 Dec
  ref. no. Inv. nr. 2217B (scan 226)
• Brandt, Geeraardt (1687)
  Het leven en het bedrijf van den Heere Michiel de Ruyter
  pp 290
• slavevoyages.org
  Slavevoyages