 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.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.