Along with others, he prepared a large-scale anti-Ottoman uprising in May 1808, but it was betrayed. Vlachavas was later captured by Ali Pasha by ploy, executed and quartered.
As part of a larger coalition, Vlachavas coordinated a large-scale revolt against the Ottoman Empire in May 1808, but it ultimately failed due to treachery. He was subsequently captured by Ali Pasha through cunning, put on trial, and met a gruesome end.