YOU SAID:
The disease which killed the Count Ferenc Nádasdy is still unknown. It is known, however, that he had suffered a disease of the lower limbs for at least two years before succumbing to the illness.
INTO JAPANESE
フェレンツ・ナダスディ伯爵を死に至らしめた病気はいまだに不明です。しかし、彼は病気に屈する前に少なくとも2年間下肢の病気に苦しんでいたことが知られています.
BACK INTO ENGLISH
The disease that killed Count Ferenc Nadasdi is still unknown. However, he is known to have suffered from lower extremity ailments for at least two years before succumbing to the disease.
INTO JAPANESE
フェレンツ・ナダスディ伯爵を殺した病気はまだ不明です。しかし、彼は病気に屈する前に少なくとも2年間下肢の病気に苦しんでいたことが知られています.
BACK INTO ENGLISH
The disease that killed Count Ferenc Nadasdi is still unknown. However, he is known to have suffered from lower extremity ailments for at least two years before succumbing to the disease.
That didn't even make that much sense in English.