From a prominent family of priests in the Fens, he was related to Oswald, Bishop of Worcester, Archbishop of York and founder of Ramsey Abbey.

[5] Eadnoth appears for the first time in the 980s when, according to the Liber Benefactorum Ecclesiae Ramesiensis, he supervised the repair of the western tower of Ramsey Abbey.

[9] It says that he was elected according to the Benedictine Rule by the monks of Ramsey, after Ealdorman Æthelwine had given Germanus enough money to found a new monastery at Cholsey.

[12] Although such nepotism contradicted the usual spirit of the Benedictine revival in England at the time, Oswald himself had similarly advanced because of family connections.

Established as a daughter-house of Ramsey (like Chaterris), the monastery's entire endowment consisted of Slepe (what became St Ives) as well as part of Elsworth and Knapworth.

[15] On 24 April 1002, soon after founding St Ives, he translated its eponymous saintly resident—discovered by a ploughing peasant a year before—to Ramsey Abbey.

[22] On 18 October 1016, Bishop Eadnoth fought and was martyred at the Battle of Assandun in Essex, alongside Wulfsifge, his successor as abbot of Ramsey, and Æthelweard son of Ealdorman Æthelwine [of East Anglia].

[26] Below Bishop Oswald is a ram, after the first element of the place-name Ramsey, and below Eadnoth a bull, in reference to the foundation legend of the abbey.