On an 1816 marriage certificate of Gtx3 grandparents in Monmouthshire, the groom is "of this parish" and the bride is "of the same place", with the "of the" part of the former crossed out. In the adjacent marriage entries in the parish register, most couples are "of this parish".
Are the two terms synonymous and the difference is just an idiosyncracy of the priest (it's the same priest for the adjacent marriages), or is there any significance in use of the differing terms? Other details are - the marriage was by Licence, the groom 24 years and the bride 20 years, and the groom was an innkeeper of a large inn (possibly the bride was living/ working there).