Let them know that they are not your parents and that they are in your house because of your late wife’s wishes. You don’t mention if they help around the house by cooking, cleaning etc. It sounds like they are pushing your buttons and getting a thrill out of it. Maybe you will have to treat them like kids as they seem to be acting as spoilt kids. You need to clear the air before everyone hates each other and that would be sad for all involved.

I’d be giving them an ultimatum. Be quiet or get out. It doesn’t sound like a positive environment for your children.

Kick them out. They are not being considerate of the father or the kids. He is the father, whose first priority is to advocate for the kids. He can’t stick to a promise made years ago when things have obviously changed

Not at all. They need to be considerate of others in the household. They must be very loud though!

Nope, not the a**hole. It’s scaring your child! Your house, your rules

I should say good on the inlaws to be still active but they should really consider that someone can hear it.

Oh wow! You’re definately not in the wrong for trying to make them move!

71 and 78 are still young enough to live by themselves. If they are being rude about your job and kids choices time they moved on.

Nope, you are not in the wrong with this. I wouldn’t be putting up with it and I think you need to sit them down and calmly explain to them what your late wife’s wishes were and that they’re living with you because of those wishes.
I wonder how your in laws would feel if your teenage daughter brought a new boyfriend home and was making these noises in her bedroom while they were around? I know the situation is a bit different but the same things apply. If you brought a girlfriend home and your in laws had to listen to your relations with her in your bedroom, would they be as accepting or tell you that it’s not on?
They’re making it very difficult for everyone to live under the same roof and if they can’t respect you and what you say (which isn’t unreasonable) then they should be the ones to move out.

A discussion about respect is definitely in order. All ages need to show respect and follow house rules or find alternative lodgings!

Wow, maybe it’s time for a granny flat?

I would remind them, that though they are there as a final wish of their late-daughter, that presumably she would have prioritised the well-being of her children over anything. This level of indiscretion if having an impact on them, so the in-laws need to either stop, or be more discrete, or move out.

I’d make it abundantly clear that they are only living with you out of respect for your late wife and they should respect boundaries as they would have expected it if someone was staying with them. You can either sound proof their room or tell them you will either move them into the room of your choice or you will find them somewhere else to live. I honestly don’t think your late wife would put up with their indiscreet noises.

So glad I never heard anything like this as a kid!!

I remember hearing my parents going at it when I was a kid. It is scarey to hear and I’m sure it scarred me for life