Martyrs of Kantara

The martyrs of Kantara are thirteen Orthodox monks from the Kantara monastery in Cyprus, persecuted and executed in May 1231 at the request of Pope Gregory IX and under the direction of his emissary, Andrew. After an inquisition trial for refusing the use of unleavened bread for the Eucharist, they were imprisoned, tortured, and then burned alive. One of them died in prison before the execution.

They are venerated in the Eastern Orthodox Church and more specifically in the Church of Cyprus as martyrs on May 19. The story of their martyrdom is partially recounted in a hagiographic text dating from the 1270s called the Narratio of the Thirteen Martyrs.

Background
After the conquest of Cyprus by Richard the Lionheart from the hands of the Byzantine usurper Isaac Komnenos of Cyprus, following a series of events, he sold the island to Guy of Lusignan. After the establishment of the Kingdom of Cyprus, a parallel Catholic religious hierarchy was established alongside the pre-existing Orthodox hierarchy. Assisted by royal power and supported by successive popes, they embarked on a campaign of conversions, religious pressures, and power struggles targeting the Orthodox communities on the island.

They were aided by the forced exile of a large majority of Orthodox bishops from the island, usually leaving only the Orthodox monasteries in the forefront, among which the Machairas monastery and the Kantara monastery stood out, to resist against royal and papal authority.

Gregory IX was known as a particularly uncompromising and violent pope; in 1231, the same year as the death of the monks, he issued the bull "Excommunicatus", confirming that the punishment for heretics was death.

Persecution and executions
Pope Gregory IX took measures to convert the island to Catholicism; he ordered that no position be given to anyone who did not recognize Latin practices. Subsequently, he sent a Dominican emissary to the island, Andrew, who engaged in a policy of persecutions targeting the Orthodox population.

Between 1231 and 1233, a series of persecutions befell the Orthodox clergy of Cyprus. In particular, thirteen monks from the Kantara Monastery were persecuted for their refusal to use unleavened bread for the Eucharist. This element indicates that the main point of conflict was the liturgical question, primarily. They underwent an inquisition trial for heresy and were then imprisoned for three years by order of the high-court of the Kingdom, composed of Frankish barons and Catholic clergy.

The monks were subsequently tortured, at least once in public. One of them died during imprisonment and was not executed.

Since they weren't changing their minds,Gregory IX directly instructed the Catholic archbishop of the island, Eustorgus, to consider them as heretics, they were then killed  by being burned alive. The execution took place in May 1231. Their bones were then mixed with those of animals to avoid producing relics.

Consequences
The Patriarch of Constantinople, Germanus II, sent a letter to Pope Gregory IX to highlight his and Henry of Cyprus's responsibility in the executions. The pope replied that they were "schismatics" but agreed to backtrack on the issue of the use of unleavened bread.

The death of the martyrs served as a catalyst for popular resentment, which grew in magnitude and sought the rejection of the Latin authorities occupying the island and their Catholic religious hierarchy. In particular, the narrative in the Narratio compares the Catholic inquisitors to the high priests persecuting Jesus, Henry of Cyprus to Pontius Pilate, and the Dominican Andrew to Caiaphas. In reality, this strengthened the Orthodox position, with these martyrs as an example, thus becoming more steadfast in their beliefs.

Monasteries became the centers of Orthodox resistance on the island, and tensions remained violent and strained between the two communities until 1260 when Pope Alexander IV issued the Bulla Cypria. This sought a position of coexistence, although heavily favoring the Catholic Church, and helped alleviate tensions to some extent.

Scientific research
The fact that certain Western Catholic researchers, such as Louis de Mas Latrie, avoided mentioning the event in their studies on the history of Cyprus, has been criticized in more recent studies, for example, by A. Nicolaou-Konnari.

Religious veneration
The thirteen monks are considered saints and martyrs in the Eastern Orthodox Church, particularly in the Church of Cyprus, where they are celebrated on May 19th.