'''Thieurrull''', also known as ''Hellguard'', is a failed colony world of the [[Romulan Main Page|Romulan Star Empire]]. Located near the [[Federation]] border, the planet is noted for its hostile environment, with extremely high temperatures and a relatively barren landscape.
Thieurrull was the location of a [[Tal'Shiar]] base.
[[Category:Romulan Star Empire]]
[[Category:Romulan Planets]]
[[Category:Planet]]