A place at the head of Eckernförde Bay, first named (Ekerenvorde) in 1197, when the church of Borby already stood on the far shore.
At the end of the 1100s the Danes built a castle at the end of the bay, named Ykernæburgh ('squirrel castle') in the king's land book of 1231; by about 1210 it was the centre of the district of Fræzlæt (de.wikipedia). It is the Danish strongpoint on the Baltic side of the march facing Holstein across the Danish Wold. The merchants' church of St Nicholas was begun about 1210; the town is first certainly called a town in 1302.
Who holds it
- Name
- The Danish crown: Duke Valdemar as lord of South Jutland (the castle's keeper is not named)
- Title
- lord
- Confidence
- medium
Lord in 1200
The Danish crown: Duke Valdemar as lord of South Jutland (the castle's keeper is not named)
How things stand that morning
Danish, on the frontier of the war with Holstein; no attack on it is recorded.
Council
None in 1200.
Walls and castle
The Danish castle (late 1100s).
Trade and crafts
Harbour on the bay; fishing.
Where the sources disagree
Evidence: de.wikipedia, from the town's history; the castle's date is 'end of the 1100s'.
Primary sources for Denmark
Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.
- The Danish annals of Lund, Ryd and other houses (12th and 13th centuries; Lund continued to 1307, Ryd to 1288). Short dated entries from Lund, the archbishop's seat, and from Ryd in Schleswig. Read online
- Annals of Stade, by Albert of Stade, Albert of Stade (about 1240 to 1256). A world chronicle written at Stade in the 1240s from older Stade and Bremen annals. Read online
- Chronicle of the Slavs, by Arnold of Lübeck, Arnold of Lübeck (about 1209 to 1210). Arnold continues Helmold and writes from Lübeck, close to Danish, Welf and Baltic affairs. Read online
- Chronicle of the Slavs, by Helmold of Bosau, Helmold of Bosau (about 1167 to 1172). Background only. Read online
- The Icelandic annals to 1578 (compiled from the late 13th century onward from older notes). Year-by-year notices that fix Icelandic chronology. Read online
- The Livonian Chronicle of Henry, Henry of Livonia (1225 to 1227). The chief source for the Baltic mission. Read online
- Deeds of the Danes, Saxo Grammaticus (about 1185 to 1208). Saxo was writing at Lund in 1200 under Absalon, who died in March 1201, and his last books are an insider's history of Valdemar I and Knud VI to 1185: the Wendish wars, the taking of Rügen, the submission of Pomerania in 1185, the Danish fleet, Absalon's power and the Danish quarrel with the Empire. Read online
- Short history of the kings of Denmark; The Law of the Retainers, Sven Aggesen (about 1185 to 1188). A short Latin history of the Danish kings to Knud VI's Pomeranian victory of 1185, with the Lex castrensis, Sven's version of the law of the royal household. Read online
11 more in the sources library for Scandinavia.
Sources and studies
Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.