Byzantine Empire

The Byzantine Empire is a former empire which is succeeded by Greece. Its capital was Constantinople.

Backstory
870: Jacob starts his Prophet days

1200: Mongols attack Kitezh and the Prophet's Army became the Deathless Ones.

1950: Soviets excavate to find Kitezh, but the Remnants try to stop them.

Story
2015: Lara Croft goes to the border of Syria  and Turkey  to find the Prophet's tomb.

Lara goes to Siberia when she discovers that the Prophet resurrected from death to find Kitezh and the Divine Source.