Tarminster was a town in England.
In the 1970s, the Master's plot to awaken the Nestene Consciousness and use Autons to take over Earth was based in Tarminster. (TV: Terror of the Autons)
In 2009, Sarah Jane Smith tracked Travast Polong to a hospital in Tarminster. (TV: The Mark of the Berserker)
Behind the scenes 
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According to the official Saxon website, Lucy Saxon's father was Lord Cole of Tarminster.
