Quatrain I-51 mentions both planets in the main theme statement (line one). Here is that quatrain in the French of Nostradamus: Chef d’Aries, Juppiter, & Saturne,
Dieu eternel quelles mutations?
Puis par long siecle son maling temps retourne,
Gaule, & Italie quelles esmotions? See it? Juppiter, & Saturne are conjunct right there. The spelling of Juppiter is actually Latin, although the “J” gets replaced with an “I,” as Iuppiter. Whenever Nostradamus wrote in Latin it was