Hedwig Sturzenegger, nee Bendel (1876- 1912), was a first cousin of Emma Jung’s.
She died of leukemia. In Memories, Jung wrote: “I dreamed that my wife’s bed was a deep pit with stone walls.
It was a grave, and somehow had a suggestion of antiquity about it.
Then I heard a deep sigh, as if someone were giving up the ghost.
A figure that resembled my wife sat up in the pit and floated upward.
She wore a white gown into which curious black symbols were woven.
I awoke, roused my wife, and checked the time.
It was three o’clock in the morning.
The dream was so curious that I thought at once that it might signify a death.
At seven o’clock came the news that a cousin of my wife had died at three o’clock in the morning!” ~Carl Jung, Black Books, Vol. 2, Page 161, fn 55