Joan Huydecoper II

Back home Johan married his first cousin, Sophia Coymans, which tied another knot to that wealthy banker family.

For years Huydecoper kept a diary, writing about his life, mentioning smoking his pipe, visiting his favourite tavern, the visitors and the many presents, the upbringing of the children, but also intimate details of his prurience, the quarrels, and clashes with the family and in-laws.

During the Year of Disaster in 1672, he was appointed as cashier at the Wisselbank and when the office of stadholder was reinstated by the 21-year-old William III of Orange, Johan Huydecoper had the political tides on his side.

He received many plants, animals and birds from Cape of Good Hope, Mauritius, Madagascar, Ceylon, Ternate and Java, e.g. parakeets, parrots, flying lizards and chameleons.

In 1689, the year after the Invitation to William Huydecoper refused to send recommendations for new appointments in the vroedschap to the stadholder and in the meantime King of England.

In 1690 he, Nicolaes Witsen and his brother-in-law Jacob Boreel were involved in a case with Romeyn de Hooghe, accused of espionage, incest, sodomy, and selling pornographic engravings.