Charles II or Charles John Amadeus, was the Duke of Savoy from 1490 to 1496 but his mother Blanche of Montferrat (1472–1519) was the actual ruler as a regent. In 1485 his father Charles I had received the hereditary rights to the Kingdoms of Cyprus, Jerusalem, and Armenia which were inherited by young Charles.
Biography from Wikipedia, available under CC BY-SA 4.0.
Also born on June 23
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Also born in 1489
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- Henry V of Brunswick-Lüneburg1489 · Duke of Brunswick-Lüneburg and Prince of Wolfenbüttel
- Jacob Sturm von Sturmeck1489 · German statesman