Out of those three only Descartes isnt Reinassance but it's Witcher so everything explained
The reason why I didn't flag up Descartes is purely because of time period.
The reason why I don't count Dante and Giotto as Renaissance is because they are from the 1200-1300's.
Giotto was part of the Italian Proto Renaissance, an art movement. Giotto lived in the medieval era, even if he might have been part of the artistic origins of the Renaissance.
This is the same for Dante, the only reason I can think of counting Dante as a Renaissance figure is due to the use of Virgil in his Divine Comedy and the constant references to the Homeric world throughout; However, a huge issue I have with this is that he lived in the medieval era and it is clear that those who he wrote for would have had a good understanding of Virgil and Homer's writings, otherwise the constant references throughout Dante's works would have been pointless. Therefore, seeing as the people Dante wrote for were well educated and clearly knew the classics well I don't think using them as part of his magnum opus wouldn't make it a revolutionary Renaissance work.