L'Hôpital's Rule/Historical Note

Historical Note on L'Hôpital's Rule
While attributed to, who included it in his $1696$ work , published anonymously, this result was in fact discovered by.

After 's death, claimed that most of the content of, including L'Hôpital's Rule, was in fact his own work.

However, it was discovered in $1955$, on the publication of correspondence between and  that there had been an agreement between them to allow  to use 's discoveries however he wanted.

Hence was vindicated, and his name continues to be associated with this result.