Trinity Monastery of St. Jonas was created in 1864.
St. Clare's Monastery was created in 1912.
St. Cyril's Monastery was created in 1760.
Coastal Monastery of St. Sergius was created in 1734.
Rogate Monastery St. Michael was created in 2010.
St. Michael's Golden-Domed Monastery was created in 1713.
Mount St. Sepulchre Franciscan Monastery was created in 1899.
Trinity Lavra of St. Sergius was created in 1345.
is cloyne the site OS st. kevins monastery
Holy Trinity Catholic Secondary School - Oakville - was created in 2002.
St. Benedict of Nursia was an abbot - the head of a monastery.
I'm not sure I can verify that it is the "first ever" monastery, but I do know that it is widely accepted that St. Anthony is the father of Christian monasticism. His followers founded the Monastery of St. Anthony in Egypt in 356 CE.
St Columba