The Fourth Seal. . . A Pale Horse
Revelation 6:7-8

"And when He had opened the Fourth Seal, I heard the voice of the Fourth Beast say, Come.
And I looked and behold a Pale Horse: and his name that sat on him was Death and Hell followed with him.
And power was given unto them over the fourth part of the earth, to kill with sword and with hunger and with death and with the Beast of the earth."
Revelation 6:7-8

          When the fourth seal was broken, John heard the fourth or Eagle-like Living Creature say Come and a Pale Horse appeared and went forth.