Thieurrull

Thieurrull (translated from Rihannsu as "Hellguard" and also known as 872 Trianguli V) was a planet located in the space of the galaxy's Beta Quadrants, the fifth planet in orbit of the 872 Trianguli star system. Thieurrull was once a Romulan world, a failed colony planet located in the Romulan Neutral Zone. Hellguard was hastily and incompletely evacuated after the "Second Federation Encroachment", and was the birthplace of Saavik. (TOS novel: The Pandora Principle; TOS - Rihannsu novel: The Romulan Way; ST novel: Vulcan's Heart)

In an alternate timeline with similar events, Saavik and a group of other children lived a feral existence on this planet before their discovery by Sarek. (ST - Myriad Universes novel: The Chimes at Midnight)

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Romulan planets and planetoids
83 Leonis B V • 872 Trianguli V • Abraxas V • Abraxas IX • Abraxas Prime • Achernar II • Achernar Prime • Acrux IX • Ain I • Alcyone II • Algeron III • Arachnae • Artaleirh • Assaf Golav • Atrius V • Avior VIII • B'Lev I • Bardat • Bestari X • Broz • Brutus X • Bu'Uli Tev III • Celes II • Chal • Chaltok IV • Chara X • Cheron • Chetzia III • Chul • Constanthus • Cor Caroli IX • Cor Caroli V • Cort • Corvus VIII • Crateris colony • Devoras planet • Didacti IV • DiWahn • D'ravasasz IV • Drovna III • Eilhaunn • Eloh • Garthos • Gasko II • Gemma VII • Gibraltar • Girga • Glintara I • Gotanna III • Hellguard • Izar IV • Jenjor VI • Kalabestasz • Kallion • Karr • Ke Kwanus V • Kevratas • Khazara planet • Levaeri V • Makar • Mire • Melik V • Mira Maj VI • Mirhassa • Nequencia colony • New Romulus • Nimbus III • Persevus III • Pilum IV • Placidus II • Primus IV • Ralatak • Rator III • Rator IV • Remus • Rhei'llhne • Romii • Romulus • Rotron • Sadall • Sadat VI • SalaH • Sandal IV • Santora Prime • Scheat III • Scutulum III • Seginus II • Sheratan VII • Sithoi • Situla I • Talvath colony • Tartalus • Terix II • Thieurrull • Unroth III • Virinat • Xanitla • Zaxx'n VI • Zevarus Prime

planets visited by the USS Enterprise (NCC-1701) (2273-2285)
James T. Kirk's second five-year mission (2273 - 2278)
	2273	Earth • Nelestra • Lorina • Sherman's Planet • Earth • Starbase 16 planet • Yannid VI • Andrea IV • Omega IX • Turages • Moonsek • 897-JOJ • Calibus VII • Earth • Manlikt • Grokh • Shadir • Toltan colony • Forma VI • Agena IV • Tarsus II • Zaran II • Telos • Abaris • Mycena • Starbase 8 planet • Barak VII • Hohweyn VII • Cragon V • Andronicus • Starbase 28 planet • Persephone II • Sherman's Planet • Skaftar • Rakatan
	2274	Mestiko • Hus-24 • Arroool planet • Sarsithia • Vulpecula 12 IV • Iskonia • Hamal IV (Starbase 18) • Mimit • Earth • Thoris Amarnis IV • Zeta-Atez • Argus IV • Cytherius • Phaeton • Hephaestus • Zeta Reticuli II • Starbase 9 planet • Miaplacidus V • Valerian • Goran IV • Nordstral • Helva • Cephalus IV
	2275	Earth • Flyspeck • Vulcan • Feeniks-Denn IV • Nova Empyrea • Yko • Miri's homeworld • Perinda IV • Oblik III • Garrus
	2276	Sigma 1212 • Zenna IV • Duran XII • Shad • Parides IV • Levaeri V • Artaleirh
	2277	Manark V • Murakami IX • Lycos V • Varda III • Myra • Khepri • Pollox IV • Upsilon Xi III • Lieberman's World • Macedon III • Marris V • Omicron Theta V • Ayin Aleph III • Lam Qaf Kha II • Kappa Rho IV
	2278	Cathy • Granotoulomines planet • Hippocrates IV • Dekkanar • Mars • Akkalla • Earth
Spock's command (2278 - 2285)		Bright Tree • Kaferia • Mestiko • Earth • Fortenue • Circe II • Earth • Belle Terre • Thieurrull • Starbase 12 • Regula I • Earth • Hellguard • Earth • Delta IV • Rator • Yko • Mestiko • Earth
Admiral Kirk's command (2285)		Earth • Regula I • Genesis Planet • Azphari • Organia • Beta Epsilon VI • Babel • Vulcan • Romulan planetoid • Earth • Genesis Planet

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Thieurrull

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