Keeper-Nominate
From Tardis Wiki, the free Doctor Who reference
The Keeper-Nominate, (TV: The Keeper of Traken) also known as the Keeper-designate, (PROSE: Asylum) was the title given to the consul selected by the Keeper of Traken as their successor prior to their Dissolution. Tremas held the title after being named the Keeper's successor at his and Kassia's wedding, but was soon replaced by his wife. (TV: The Keeper of Traken)