Beans, Good Ol' Beans

Everyone here knows that the CC is crazy about them (both fresh and dried) and that he adores them with a passion only rivalling his love for anchovies.

However, how many know that the famous Roman surnames are actually derived from beans? (Possibly, their families made their fortunes in the bean agricultural trade.)

Cicero is derived from chickpeas (modern-day Italian: cece/ceci.) Fabius refers to fava beans (modern-day Italian: fava/fave.)

Lentulus should be self-evident, and Piso refers to peas (pisello/piselli.)