The Seventh Trumpel marks "The time of the dead that shall be judged".

.......................This shows that the Seventh Trumpet includes all the events that complete the mystery of God.

...................................The righteous dead have been resurrected before the Seventh Trumpet, so the reference is to the wicked dead.

John 5:28
"Marvel not at this: for the hour is coming, in the which all that are in the graves shall hear his voice,
.............29 And shall come forth; they that have done good, unto the resurrection of life; and they that have done evil, unto the resurrection of damnation."