On þǣm Middelieldum, Sealterland ƿæs sandiȝ stede nēan 15 km lang and 1–4 km brād, begān be fenum. Ēastfresmenn sǣton þǣr betƿēon þǣm 10 and 13 ȝēarhundredum, fram Ēastfreslande. Ƿesende ānȝengisc, þā ƿara hæfdon hiera āgne Ēastfresisce sprǣċcynd, Sealterisc, þe ȝīet lifaþ. Þæt Sealterfrescynn is sēo læste læssnes þȳ Þēodscan ānƿealde.