Portora Castle was built for Sir William Cole who purchased the land in 1612. It is strategically positioned by the narrow exit of the River Erne into the Lower Lough Erne.
Sir Michael Cole and his family moved to Portora Castle in 1710 when their previous residence, Enniskillen Castle, was hit by fire. They remained there until about 1716, when Sir Michael's son, John Cole (1680–1726), started building Florence Court.
Three of the flankers remain, the two on the west, flanking the walls of the castle. These round towers, about 3m in diameter, have several gun loops. Inside the castle can be seen proper fireplace chimneys in the north and west walls.
The ford at Portora was important in the Erne Waterways and must have seen considerable traffic in peace and war. In the course of the Erne Drainage Scheme (1951–1960) a bronze dirk and stone axes were recovered at this point. The castle is now in ruins, partly because a group of truanting school-boys from nearby Portora Royal School, now Enniskillen Royal Grammar School, experimenting with gunpowder they learnt how to create in chemistry class, blew up a section in the latter part of the 19th century. They also tried digging under the building which added to its dereliction.
References:Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).