Roden (roðer, "rowing") old designation of the coastal areas of Svealand (the yellow areas in the map), that in wartime would man and equip the ships that sailed out in ledung.
It was not only the eastern part of the province of Uppland that was called "Roden" (by Snorri Sturluson called Sæland) but also other provinces by the Swedish "East sea" (Baltic sea), like the coastal areas of the province Östergötland.
The Finnish, Estonian and Sami names for Sweden, Ruotsi/Rootsi/Ruoŧŧa, are considered derived from the word "Roden".