History - 36 free documentaries about the renaissance.
Start with The Renaissance - The Age of Michelangelo and Leonardo da Vinci (1/2) (42 min, DW Documentary), then The Renaissance - The Age of Michelangelo and Leonardo da Vinci (2/2) (42 min, DW Documentary). All 36 documentaries here are free to watch from their makers' official uploads. To read deeper, the top-rated book on the renaissance is Leonardo da Vinci by Walter Isaacson.