Ruth Clayton's parents
From Tardis Wiki, the free Doctor Who reference
The alleged parents of "Ruth Clayton" lived in a disused lighthouse around Gloucester.
According to Ruth, her relationship with them was strained. They died sometime after she moved away, and where buried nearby. They left the lighthouse to their daughter, who never wanted to live there.
In actuality, "Ruth" was an incarnation of the Doctor assumed under a Chameleon Arch, and her parents' "grave" near the lighthouse was where her TARDIS buried. (TV: Fugitive of the Judoon)
