Yep, we had a few ‘momments’ with both sets of parents when organising our Wedding.
My Folks weren’t too bad, however they did try and get a few random relatives i’ve never met onto the guest list, which did cause a minor falling out.
My in-laws were just a pain in the backside from day 1.
They showed minimal interest in the whole thing until a few weeks before (basically because they didn’t want to give us any money) However they did finally decide to pay for my wifes dress, which they then used as an excuse to start laying down demands – even to the extent that they complained about our choice of drinks behind the (fully funded by us) bar. (apparently all of my wifes ‘chim-chiminey’ relatives from North London only drink spirits, and we weren’t buying spirits) they also complained that the venue was too far out of London, they didn’t like our food plans, the list goes on….
My only bit of advice is it is YOUR day – beware of ill-meaning relatives trying to exert, or buy influence.