@High Seas,
Thanks.
Well, peace came to us, both of us.
If you don't mind, I'll ventilate a bit here.
Mass was at 2 pm. We arrived 20 mins earlier. My niece and partner came to us as well as one nephew and his wife. Talked with us as did a couple of neighbours and family friends.
My sister and BIL were already in the church, had left the first row for us, they all were in the second. (My sister's MIL was in the church, too. Not to miss: she was the only person with a light beige jacket and nearly white trousers. The youngest nephew and his fiancée didn't come: he had important exams at university - he's a latecomer and always has been his mother's darling; his friend is pregnant and they'll marry soon I've learnt from between the lines.)
We shook my sister's/BIL's hands in the church - the only contatc we were able to make with them.
The mass was really something mother had liked: all her favourite songs and carols, a lot of candles and flowers and even more altar boys/girls than usually.
At the cemetery, my sister/BIL waited quite some distance away until we arrived.
The short ceremony in the cemetery's chapel was ... well, mother really wouldn't have complained: candles, a lot of roses, flowers, ... and even quite some people attending.
SIster/BIL left the 'scene' after the actual burial. My sister didn't creep, scream, sob twice or three times during all that time.
Nephew/niece and their partners joined us for the coffee.
I talked with them nearly all the time, over this and that, gave some infos about mother's illnesses and what I had to do when, but we didn't talk about my sister at all.
We have been about 28 persons at the coffee - 14 relatives from BIL's site missing, including his mother (his siblings/family didn't be in church or at the cemetery either nor did they send any kind of condolences).
Mrs Walter and I were really very happy with all and everything.
We got a lot of support and understanding words, too. (nearly all of the early nurse shift from mother's ward were in the church/at the cemetery as well.)
What I personally liked best was that both my niece and nephew thanked me for arranging this day.