Eric's Chronicle is the oldest surviving Swedish chronicle. It was written by an unknown author (or, less probably, several authors) between about 1320 and 1335.

It is the oldest in a group of medieval rhymed chronicles recounting political events in Sweden. It is one of Sweden's earliest and most important narrative sources. Its authorship and precise political significance and biases are debated, but it is clear that the chronicle's main protagonist and hero is Eric, Duke of Södermanland

Eric, Duke of Södermanland

Eric Magnusson was a Swedish prince, Duke of Svealand, Södermanland, Dalsland, Västergötland, Värmland and North Halland and heir to the throne of Sweden. He was the father of King Magnus who became king of both Norway and Sweden.-Background:...

, brother of King Birger of Sweden.

The chronicle is written in knittelvers, a form of doggerel, and in its oldest version is 4543 lines long. It begins in 1229, with the reign of Eric XI of Sweden

Eric XI of Sweden

Eric "XI" of Sweden, or Eric the Lisp and Lame Swedish: Erik Eriksson läspe och halte; Old Norse: Eiríkr Eiríksson was king of Sweden in 1222–1229 and 1234–1250.-Background:...

 (d. 1250) but focuses on the period 1250-1319, ending in the year when the three-year-old Magnus IV of Sweden

Magnus IV of Sweden

Magnus Eriksson as Magnus IV was king of Sweden , including Finland, as Magnus VII King of Norway , including Iceland and Greenland, and also ruled Scania . He has also vindictively been called Magnus Smek...

came to the throne. It survives in six manuscripts from the fifteenth century and a further fourteen from the sixteenth and seventeenth.