|Other name(s)||Cleopatra Carling Buchanan|
|Breed||Border Collie-German Shepherd cross|
|Born||26 February 2011|
|Died||29 October 2021 (aged 10)|
|Resting place||Beddington Park|
|Owner||Family of Hannah, Princess of Wildflower Meadows|
|1st Honorary Mascot of the Order of the Bullmastiff|
26 February 2018 – 29 October 2021
|Preceded by||"Lily" Carothan Lilly of the Water, as Mascot proper|
Cleo (26 February 2011 - 29 October 2021) was a Border Collie-German Shepherd cross who belonged to the family of Princess Hannah of Wildflower Meadows. Born on the Isle of Skye, Cleo soon moved to live with the Princess' family close to Wandleside.
Cleo was appointed the first Honorary Mascot of the Order of the Bullmastiff on her seventh birthday, 26 February 2018, by Emperor Jonathan I after no suitable bullmastiff could be found to fill the actual position. Provision had been made in an Austenasian law of 2016 for a non-bullmastiff to be made Honorary Mascot should the position fall vacant.
Cleo moved to Surrey along with the Princess' family in December 2019. After falling seriously ill in October 2021 and rapidly deteriorating, she was put to sleep at the end of the month after it was confirmed her condition could not be treated. Her ashes were scattered on 26 February 2022 - her would-be 11th birthday - in Beddington Park.