The 1749 Muslim slave revolt in Malta (known as the Conspiracy of the Slaves (Maltese: il-konġura tal-ilsiera or il-konfoffa tal-ilsiera) or the Revolt of the Slaves), was a failed plot by Muslim slaves in Hospitaller-ruled Malta to rebel, assassinate Grand Master Manuel Pinto da Fonseca and take over the island. The revolt was to have taken place on 29 June 1749, but plans were leaked to the Order before it began; the plotters were arrested and most were later executed.