Daily entries from the 17th century London diary
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Johannes Siberius Kuffler was originally a dyer at Leyden, who married [Cornelis van] Drebbel’s daughter. In the “Calendar of State Papers, Domestic,” 1661-62 (p. 327), is the following entry: “Request of Johannes Siberius Kuffler and Jacob Drebble for a trial of their father Cornelius Drebble’s secret of sinking or destroying ships in a moment; and if it succeed, for a reward of 10,000l.. The secret was left them by will, to preserve for the English crown before any other state.” Cornelius van Drebbel settled in London, where he died. James I. took some interest in him, and is said to have interfered when he was in prison in Austria and in danger of execution.
See annotation under Cornelis Drebbel:
known for ” bow dye”
http://www.british-history.ac.uk/report.asp?compid=22161
Dr. Johannes Sibertus Kuffler of Leyden, who had married a daughter of the famous Dutch chemist Drebbel, set up a scarlet-dye house at Bow, probably putting to practical use improved methods learnt from his father-in-law. The scarlet he obtained soon became known as ‘Bow dye.’