I was giving more thought to your post, and please forgive me, but I must say:
Just go and see him.
No raised voices or arguments toward other members of the family...just go and say "hello"
You are entitled to do so, and you know he will be receptive.
Time runs out...people are not always with us...so perhaps just pay a dignified visit and don't allow anyone to take the conversation in a direction that causes issues.