I feel so saddened by all the tales told above and my thoughts are very much with you.
I have had a situation though not as bad as those above but nevertheless it was upsetting.
My brother died on 7 March this year and we were due to attend my brother-in-law's wedding on 20 March. When we heard the sad news of my brother's death my husband phoned his brother to say that we were not certain we would be able to attend his wedding as it was in Sheffield, we live in West Wales and the funeral would be held down South.
As my brother lived in France it took so long for all the formalities to bring him back to England that the funeral wasn't until 23 March.
We were therefore able to go to the wedding though it was quite upsetting to see families together whilst I was still very much grieving. I have always found when I have lost someone close that the time between the death and the funeral to be the worst. Somehow after the funeral I begin to heal though, of course, I still have bad days.
I was a bit shocked that when my brother and sister-in-law saw me looking tearful they just said "oh weddings are always emotional". They didn't say anything like I would have said "we appreciate you making the effort to come" or something along those lines. They didn't even send a condolence card.
Conversely a few people on this site who got to know my sad news sent me the most loving and caring messages I could ever have wished for. It meant so much and these are from people whom I have never met. (I have since met up with Cantleave and Nugget and Nugget was one who sent me a really lovely message)
Again, I am sorry for those who have had even sadder stories to tell, losing someone is never easy.