I know people will be angry with me but I'm not going to allow my oldest brother to go to my grandfather's funeral.
Is there a reason for you not wanting your brother to attend the funeral?
He and my grandfather had a fight years ago and my grandfather never forgave him.
Even if you have a personal issue with your eldest brother, preventing him from attending your grandfather's funeral is wrong since he is also family and he also has the right to be present there. It's morally wrong to prevent mourners from paying their last respects to the deceased at a funeral. in the future, rather than prevent your eldest brother from attending family events, you should work to repair your relationship with him so that he is always welcome to attend them.
My grandfather wouldn't want him there, the rift between them was that big and I'm just following my grandfather's wishes.
Sometimes you have to let the past go and try to move forward. Even though you think your grandfather wouldn't want your brother there, he may have forgiven him in the end. You should allow your brother to attend the funderal.