Complex sentence: Maria Teresa Mestre married Prince Henri of Luxembourg on 4 February 1981 (civil ceremony) and 14 February 1981 (religious ceremony) with the previous consent of the Grand Duke given on 7 November 1980.
Split into simpler sentences: Maria Teresa Mestre married Prince Henri of Luxembourg in a civil ceremony on 4 February 1981 and the religious ceremony on 14 February 1981. The consent of the Grand Duke had been previously given on 7 November 1980.