Dutch painter, brother of Simon Luttichuijs. The brothers were sons of Dutch parents and born in London. They moved at a young age to Amsterdam where they studied. Isaac began his career as a still-life painter working in the studio of his elder brother Simon but soon turned to portraiture, developing a style influenced by van Dyck and, after 1638 on settling in Amsterdam, by the portraits of Bartholomeus van der Helst. Isaac Luttichuijs married and had three children and eventually died in Amsterdam in 1673. //