Toyotomi' was its honsei (original name) and it is different in character from the myoji (family name) in such cases as the 'Oda clan' (honsei was Taira no Ason) and the 'Tokugawa clan' (honsei was Minamoto no Ason).
「豊臣氏」は本姓であって、「織田氏」（本姓は平朝臣）や「徳川氏」（本姓は源朝臣）などといった名字とは性質が異なる。