Analysis of information sources in references of the Wikipedia article "Kiss of peace" in English language version.
According to an old French custom, however, the priest gave the Kiss of Peace to the groom in a bridal Mass, who in turn imparted it to the bride.
A manuscript pontifical in the library of Magdalen College, Oxford, of the twelfth or thirteenth century, has in this place the rubric, "Hic osculatur sponsus sacerdotem, et potestea suam sponsam."
Then the bridegroom received the pax from the celebrant, and gave it to his wife, but neither, he nor she, gave it to any other, as the Rituals prescribe.
