Career
From the Austrian noble family of the counts of Colloredo-Mels, his decision to join the Order was a sudden one - he was inscribed in it on 28 November 1779, when he was less than a year old. He made his adult profession to join it on 8 May 1840 and succeeded Carlo Candida as its lieutenant general in 1834, holding the post until his death, when he was succeeded by Alessandro Borgia.