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Ilfingburg (, ) is burg on Polum and hȳð for Estmere. Hēo stent æt Ilfing ēa mūþan (se is Estmeres earm) and nimþ hiere naman þǣrof. Ilfingburg ligþ betƿeonum Estmere and Trusomere.

Þā Germaniscan Cnihtas getimbrodon þā burg in þǣre þrāge fram þǣm 1240. gēare oþ þæt 1242., in Truso byrig stede. Hēo ƿearþ micel sǣport. Sǣcēapung is nū læsse forþǣm Estmere ne geopenaþ to þǣm ƿīdsǣ būton þurh āne nearƿe nearunesse, þā āh Russe.

Byrig on Polum
Hȳða on Polum