gate dedicated to St. John the Baptist which cared for the sick. Sibton's architectural style was in the austere Cistercian original model, but was not devoid of ornamentation. The principal standing ruins are those of the Frater or Refectory hall of the convent, and are from the mid-12th-century phase of construction, in the late Norman or Romanesque style. The convent church, which had a central crossing, stood on the north side of the cloister, and on the east side (extending south from the south transept) was the range including the dormitory with its undercroft. Sibton is unusual among Cistercian houses in that the Frater (the standing ruin) formed most of the south range, aligned east and west, with the screens passage and kitchens at its western end and the dais for the high table at the east, where the great blank arch still remains in the end wall. (The Frater should normally extend at right-angles to the south range.) On the west side of the cloister was a wall separating it from an open area or lane, beyond which the western range (the Cellarium) stood. This was possibly the domain of the lay brethren, separate from the enclosed brethren in holy orders, who together made up the conventual community. Sibton grew rich on proceeds from various forms of husbandry, and from the wool trade which built so many grand English churches. Although Suffolk wool was not of the finest quality, according to some historians, often stained with tar or grease, it was nevertheless in great demand, particularly in East Anglia, which had many Flemish weavers anxious to convert it into exportable cloth. The abbey's various mills, of which there were at least 15 on their outlying Suffolk estates during the 13th century, both watermills and windmills, were maintained to mill grain on economic principles quite unlike those of later periods. The 14th-century bibliographer Henry of Kirkestede, of Bury St Edmunds, saw a copy of the Chronicon of Ralph of Coggeshall from Sibton. A 15th-century navicula de Venetiis (a type of portable sundial) found near the Abbey in 1989 is now in the National Maritime Museum. Dissolution At the time of the Dissolution of the Monasteries, when it is noted that Thomas Fiennes, 9th Baron Dacre (then aged about 20) was patron as heir to William de Chesney, Sibton Abbey's annual income was £250. This substantial sum ought to have allowed