This battle took place on 30–31 May 1564 between the islands of Gotland and Öland, between a fleet of Allied ships, the Danes under Herluf Trolle and the Lübeckers under , and a Swedish fleet of 23 or more ships under . It was an Allied victory.
| Graph IRI | Count |
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| http://dbkwik.webdatacommons.org | 32 |