On behalf of the Dutch Republic he undertook several diplomatic visits to Algiers.
Jacobus Henricus van 't Hoff | Jacobus Arminius | Tim Jacobus | Jacobus Hendrik Pierneef | Jacobus de Teramo | Jacobus Van Wagenen Stone House | Jacobus van Meteren | Jacobus Tirinus | Jacobus Schroeder van der Kolk | Jacobus Ó Cethernaig | Jacobus H. van 't Hoff | Jacobus Golius | Jacobus de Voragine | Jacobus Boomsma | Jacobus Barbireau |