Isaac de Mattathias Aboab

Isaac de Mattathias Aboab was a Dutch Sephardi merchant and scholar. He made his wealth as an East India merchant trading with Spain and Portugal under the assumed name of Dennis Jennis. Although not a rabbi he patronized rabbinical works and was a prolific writer and copyist. He wrote a morality play on the life of Joseph, and compiled a history and genealogy of his own family. His only published work was “Doutrina Particular” (Amsterdam, 1687, 1691), a brief handbook of moral conduct, first written for his son in Hebrew but published in Portuguese.