He became known as Robert of Jerusalem ( Robertus Hierosolimitanus ) or Robert the Crusader after his exploits in the First Crusade .
Robert II ( c. 1065 -- 5 October 1111 ) was Count of Flanders from 1093 to 1111 .
Count of Flanders became known as Robert II of Jerusalem ( Robertus Hierosolimitanus ) or Robert II the Crusader after Count of Flanders ' exploits in the First Crusade .
Robert II ( c. 1065 -- 5 October 1111 ) was Count of Flanders from 1093 to 1111 .