The mentioned lifespans are for humans only. Fehls are immortal while other races are either immortal or have different lifespan schemes.

Humans:

Lesser Emissary - 100 years

Core Emissary - 120 years

High Emissary - 150 years

Archon - 200 years

Exarch - 500 years

Astral Master - 2000 years

Hierarch - 5000 years

Thearch - Immortal

Fehls:

Fehl Mutant

Fehl Beast

Fehl Daemon

Fehl Noble

Fehl Lord

Fehl Prince

Fehl Overlord

Fehl Origin