How to get Epitaph Prime Blueprint in Warframe?

Epitaph Prime Blueprint is an item dropped from Void relics.
You can find the list of relics below, and click on the links to see how to get them.

Relics dropping Epitaph Prime Blueprint

Other items:
Epitaph Prime Receiver - Epitaph Prime Barrel - Epitaph Receiver
Epitaph Blueprint - Epitaph Barrel