Are there any go masters who are late bloomers?

Some people learn Weiqi very early, but they become famous very late. I learned it very late, but now it's gone. It's probably ancient ... but it won't be too much, because the ancients also learned chess and calligraphy from an early age, just like our mathematics in China now.

Fujizawa Hedeyuki may be a late bloomer ... but maybe there are such masters in that place, but it's just not a profession that everyone doesn't know ... such as Lishan Xianmu. ...