Coat of arms of the Dukes of Brabant of the Burgundy family.
Arms of Philip II of Valois  quartered with Brabant-Limburg 

Blazon: Quarterly, I and IV azure three fleur-de-lis Or, a bordure chequy argent and gules; II sable a lion rampant Or, armed and langued gules; III argent a lion rampant gules, queue fourchée, armed and langued Or.
Modified from
Ipankonin