Columbinetta

 was one of the puppets created by Gramm using Cyberman technology. Johan Drossel used her to perform simple tasks like fetching Gramm, whom he called his "watchdog", to his tent.

Columbinetta's functioning ceased together with that of its creator, Gramm, on 12 September 1873. All remnants of the Cyber-Technology were destroyed 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.