In 1308 the Pope, fearful of the power of the Knights Templar as a challenge to his authority over the Roman church, called for their entire suppression. All their lands and properties were transferred to the Order of the Hospital of St John of Jerusalem who had provided hospice and medical care to the Knight Templars during the Crusades.

The Hospitallers continued as lords of the manor at Sibford for two centuries from 1338 to 1512. By 1512 their interest had waned and all the lands were released to local tenants. By 1536, when Henry VIII dissolved the monasteries and turned against the Church of Rome, the priest who had been paid £2 a year to conduct mass in the Sibford Chapel went away and the chapel fell into disrepair.