Kaiphas (Keuffe) is mentioned 19 times between 1629 and 1678. He died around 1678. His designation in the Stühlingen family tree is 'K1'.

Kaiphas first appeared in 1629, and was under protection from 1634 on. He lent money. In 1652 he was jailed in Klingnau, Switzerland, and had to be bailed out by `Jäggle` (Jacob ben Judah Weyl). After that he was no longer competent and was under constant guardianship until his death around 1678. The records allow no conclusions whether the incompetence was a cause or a result of his incarceration. Jäggli was his first guardian, followed by Lehman (Judah ben Naphtali Bickert), and finally Model (Mordechai Weyl) .