"Tjerk Hiddes de Vries (Sexbierum, 6 August 1622 - Flushing, 6 August 1666) was a naval hero and Dutch admiral from the seventeenth century. The French, ...
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who could not pronounce his name, called him Kiërkides. His name was also given as Tsjerk, Tierck or Tjerck." - (Wikipedia (en) 01.06.2021)