A 16 minute video of the wedding. The wedding procession to the church is shown at the end while the wedding begins with the religious ceremony and the reception afterwards.
Quite a few royals there though the Greek relatives seems to be largely absent - except for Pss Sofia -already married to Juan-Carlos and Prince Michel, an Orleans through his mother. The wedding was only 4 months after the death of King Paul I, which perhaps played a role.
A prominent role for Pss Anne, Dss of Aosta aunt of both the groom as the bride who is added to the line of people to be greeted, with the parents of the groom & bride and the King and Queen of Italy.
Courtesy for the video: José at the Warholm boards.