I remember when we first moved over here from Belfast, we were staying at my Grandma's. One afternoon, she went to fetch the local paper as it came through the letter box, and exclaimed "Oh my god, they've killed Mountbatten."
I only had a shaky idea who he was, as I was 10, but I knew it was terribly important. And of course, I had a pretty good idea who 'they' were.