What is the significance of the word "Hakatan" after one's surname? If this descriptive is used by learned people and rabbonim, then is it not self-defeating to call oneself "Hakatan"?
ולמה נקרא שמו קטן לפי שהוא מקטין עצמו ויש אומרים לפי שמעט היה קטן משמואל הרמתי
And why was his name called "katan" (small)? Because he diminished himself. And some say because he was slightly lesser than Shmuel Haramati.