FLANDERS WAS INHABITED BY CELTS IN THE 1ST CENTURY BC AND CONQUERED BYGERM ANIC TRIBES IN THE NEXT SEVERAL HUNDRED YEARS, FINALLY BECOMING PART OF T HE HOLY ROMAN EMPIRE ESTABLISHED BY CHARLEMAGNE IN THE 9TH CENTURY AD. ABO UT 862, BALDWIN I, SON-IN-LAW OF CAROLINGIAN EMPEROR CHARLES II 'THE BALD ', WAS CREATED THE FIRST OF FLANDERS. UNDER BALDWIN I AND II, FLANDERS W AS MADE SECURE FROM VIKING INVASIONS. IN THE EARLY PART OF THE 10TH CENTUR Y, BALDWIN III LAID THE BASI S FORINDUSTRIAL AND COMMERCIAL SUCCESS IN T HE AREA. FLANDERS WAS INHABITED BY CELTS IN THE 1ST CENTURY BC AND CONQUERED BY GER MANIC TRIBES IN THE NEXT SEVERAL HUNDRED YEARS, FINALLY BECOMING PART OF T HE HOLY ROMAN EMPIRE ESTABLISHED BY CHARLEMAGNE IN THE 9TH CENTURY AD. ABO UT 862, BALDWIN I, SON-IN-LAW OF CAROLINGIAN EMPEROR CHARLES II 'THE BALD ', WAS CREATED THE FIRST OF FLANDERS. UNDER BALDWIN I AND II, FLANDERS W AS MADE SECURE FROM VIKING INVASIONS. IN THE EARLY PART OF THE 10TH CENTUR Y, BALDWIN III LAID THE BASI S FORINDUSTRIAL AND COMMERCIAL SUCCESS IN T HE AREA.