So my problem is that my family and my partners family will be difficult to seat together, and within my partners family, his mother and father HATE each other.

I know my side of the family will 'put up' with his family,but I don't want to make the day awkward for them, plus I will worry about it.. all night!

The situation is:
Grooms side...
Mother and father hate each other but the best man will be fine where ever.

On my side...
My mother and father hates his father and my sister (bridesmaid) hates his mother.

And before you all say that they should realise its our day and just get on... his parents won't, they are selfish and won't be able to contain themselves once they have a drink.

My parents however are more civilised, but I don't want them to be uncomfortable all day and night. Although my sister, moody cow (lol) she is not very tolerant.. policewoman!

So... where do I seat them all... oh and, although it would be easier... I don't want to get married abroad or secretly! Lol

Just put your famillys side on one side
And then put your boyfriends familly on the other side

If his mother and father don't get along, separate them and sit them next to another relative. If they misbehave, kick them out. It's you and your day.

Sit them down and tell them to shut up and play nice for that couple hours. Who cares they don't like each other, they are suppose to play well on that day

I agree with fr chuck
You make the sitting arrangement the way you want and leave at that and put the word out you wnt no fight or arraguing tell they get home tell them to have respect for you and the others...
Stick to your guns Good luck

There are no rules as to who has to sit together. Seat his mother at one table with some of her family and friends, seat his father at another table with some of his family and friends, seat your parents at yet another table with your sister and some of their family and friends. The maid of honor and best man do not need to sit together. The bottom line is that everyone (ESPECIALLY YOU) should feel comfortable so that you can enjoy the day.

Wow!. and you are marrying into this mess? ;) Maybe your fiancée and you should sit down and write up a contract. Make it clear that if they can't act like the adults that they are, in order to make your day special and stress free, that they will be asked to leave. Have your husband take his to his family members, and you to yours. Have them sign it, in a symbolic manor, and ask them all to read it again the day of your wedding. That might show them how stressful this is, without having to worry about them fighting.