True OR False

Many people believe the Robin Hood was a real man while others believe he is an imaginary person. The earliest references of Robin Hood date back to the 14Th century. Some stories say that he was born in 1280 and married a woman named Matilda, while other say he lived in 1261. So how could he be born in 1280 and have stories dating back to 1261. There is still much doubt weather he is fiction or non-fiction.