|Queen consort of Denmark|
|Born||unknown (before 1076)|
|Died||unknown (after 1080)|
|Spouse||Harald III of Denmark|
Margareta was the daughter of jarl Asbjörn Ulfsen, possibly an uncle of her spouse; she would thereby have been her husband's cousin. No children are known from the marriage. The dates of her birth and death are unknown.
A DNA test in 2003 dispelled the centuries-old legend that Estrid Svendsdatter was buried in the northeastern pier of the Roskilde Cathedral. The new theory is that the sign on the pier refers to Margareta Hasbjörnsdatter, who was also known as Estrid.
- "Last Viking buried with wrong woman". The Copenhagen Post. Retrieved 19 September 2011.
| Queen consort of Denmark
Adela of Flanders