Death

"And when the fourth seal was undone, the voice of the fourth beast came to my ears saying: "Come and see". And I saw a pale green horse, and the name of him who was seaten on it, it was Death. And there was given to him authority over the fourth part of the earth, to put to destruction by the sword, by starvation, by death, and by the beasts of the earth"
Apocalypse 6:7-8