[2] The marriage was arranged to strengthen the ties between the king and her father, who had been appointed seneschal of France.
According to Abbot Suger of Saint-Denis, who wrote a panegyric in honour of Louis (Vita Ludovici VI), the marriage was not consummated.
The marriage was annulled by Pope Paschall I at the Council of Troyes on the grounds of consanguinity 23 May 1107, a year before Louis became king.
One theory is that queen Bertrade de Montfort wanted to weaken Louis in order to make her own son, Philip of Mantes, more likely for succession,[4] another was the rivalry of Lucienne's father with the Garlande family, who wished to weaken his position.
After her marriage was annulled, Lucienne's father, Guy, and her brother Hugh of Crécy rebelled against Louis.