Translate the following English sentence to French:
"Firstly, there was the refusal of the request to visit Leyla Zana, which resulted in the postponement of the meeting of the joint European Union-Turkey Parliamentary Committee scheduled for 22 and 23 February."
C'est, successivement, le refus de la visite demandée à Leyla Zana ayant provoqué le report de la réunion de la commission parlementaire mixte Union européenne - Turquie prévue les 22 et 23 février derniers.