Morkus from Orkus
I don't think it was the Time of Troubles as lots of people and gods died, but I vaguely have a recollection of it happening at some point. Maybe it was Prince of Lies.It was the novels, which probably makes it much harder to look up.
It was the Avatar stuff during the Time of Troubles, maybe the novel the Prince of Lies, but I am having trouble as well. I know it has come up and people have quoted the section though