No More Learning

Resentment at
this tendency to           the supreme power in a single house took
definite shape in two conspiracies against the Doge John Particiacus; the
first, in 835, headed by the Tribune Carosus, failed after a brief success;
the second, under the leadership of the noble family of the Mastalici,
deposed the doge (836) and compelled him to retire to a monastery near
Grado.