Lamotius was interested in arts and knowledge and became an ichthyologist; he made 250 drawings of fishes which are kept in Paris.
[3] Isaac was the son of Johannes Lamotius, who played a main part in the capturing of Dutch Malacca (January 1641) and married in Batavia the widow of Matthijs Quast.
In 1682 Joan Huydecoper II strongly urged the colonial administrators to undertake botanical research and stimulated the production of drawings of plants on the spot.
his fifteen years of command saw the island descend into despotism, and immorality was rife.
When people complained in 1692, Lamotius and his second man were shipped to Batavia and tried in 1695, sentenced for private trade.