Saxo Grammaticus describes the inhabitants of Estonia and the
Curonians as participating in the
Battle of Bråvalla on the side of the
Swedes against the
Danes, who were aided by the
Livonians and the
Wends of
Pomerania.
Baltic tribes — i.e., the
Letts and
Lithuanians — are not mentioned by Saxo as participating in the fight.
Snorri Sturluson relates in his
Ynglinga saga how the Swedish king
Ingvar Harra (7th century), the son of
Östen and a great warrior, who was forced to patrol the shores of his kingdom fighting pirates from Estonia. The saga speaks of his invasion of Estonia where he fell in a battle against the men of
Estland who had come down with a great army. After the battle, King Ingvar was buried close to the seashore in Estonia and the Swedes returned home. According to
Heimskringla sagas, in the year 967 the
Norwegian Queen Astrid escaped with her son, later king of
Norway Olaf Tryggvason, from her homeland to
Novgorod where her brother Sigurd held an honoured position at the court of
Prince Vladimir. On their journey, "vikings from Estonia" raided the ship, killing some of the crew and taking others into slavery. Six years later, when Sigurd Eirikson traveled to Estonia to collect taxes on behalf of Valdemar, he spotted
Olaf in a market on
Saaremaa and paid for his freedom. A battle between Estonian and
Icelandic Vikings off
Saaremaa is described in
Njál's saga as occurring in 972 AD. About 1008, Olaf II Haraldsson, later king of
Norway, landed on Saaremaa. The local inhabitants, taken by surprise, had at first tried to negotiate the demands made by the king and his men, but then gathered an army and confronted them. Nevertheless, Olaf (who was 12 or 13 years old at the time) won the battle. Around the year 1030, a
Swedish Viking chief called
Freygeirr may have been killed in a battle on
Saaremaa. In the winter of 1219, Saaremaa was invaded by Old Lithuanians who raided and pillaged its inhabitants for loot, cattle and slaves. According to historical rhymed sources:"Deluded by their bravery / They went through all the land [...] / All paths, and also tracks / Were covered rich in blood [...] / They taught folk how to die / Both men and women / If only they have failed to flee."The
Livonian Chronicle describes the inhabitants of Estonia as using two kinds of ships, the
piratica and the
liburna. The former was a warship, the latter mainly a merchant ship. A
piratica could carry approximately 30 men and had a high prow shaped like a dragon or a snakehead as well as a quadrangular sail. == Economy ==