Sit the children down and explain there will be no external outing or screens (computers/phone/TV) when both families are together until they have found a suitable working relationships, how long that takes is entirely up to them
I assume your Husband makes individual separate time for the children that are not living with you, and that they do sometimes have your home to themselves without your daughter, so they don't feel excluded.
Let them generate the solutions and ideas as to how they are going to make a situation, where others are not dominated by their behaviour,
explain they can take as long as they like to find solutions, and if the ones they come up with first don't work, they can go back to the drawing board,
Make sure they explain to each other which bits of the situation they find hard.
Tedious and annoying restorative process, to wade through, but it puts in place a frame work to build on.
Don't give in, make sure you pre plan your responses work as a team, don't put words in their mouths, make them generate the thoughts and ideas,
If you talk, all the see is your lips moving and they hear the sound track of the last program they enjoyed.
All the children need to produce from their own mouths, how they feel, and how their behaviour makes all other family members feel.
Good luck.
And keep updating the process, they have to really think it all through carefully, if produce the ideas for discussion.
If they have to go through the process each time there is an incident, they soon choose to get along, as it is a real drag having to jump though all the hoops again.