See Wyndhill Wyndybank See Windybank Wynn & Firth Of Halifax. The earliest decree in which the young children had been declared to be slaves, the property of the Church, and by no means to be enfranchised, appears to be to have been a canon of the Synod of Pavia in 1018. Similar penalties have been promulgated afterwards on in opposition to the wives and concubines (see the Synod of Melfi, 1189, can.