Columbinetta

 was one of the wooden puppets created using Gramm's Cyber-Technology. Johan Drossel used her to perform simple tasks like fetching Gramm, whom he called his "watchdog", to his tent or putting the Eighth Doctor into a cellar.

Columbinetta's functioning ceased together with that of its creator, Gramm, on 12 September 1873. All remnants of the Cyber-Technology were burned by the Eighth Doctor. (AUDIO: The Silver Turk)

Behind the scenes
Judging by the name, the appearance of Columbinetta was not based on any particular person. Rather it was based on a female character from several 19th century Austrian pantomimes about Harlequin. This made her a likely candidate for performing in Marionettenburg.