Born in Sussex, England, I was an orphan by age 6 and entered college at age 13.
In 1650, I served as Oliver Cromwell's political envoy to Switzerland, but failed in his mission.
For a unfortunate length of time, I was confined as a debtor in King Charles II's prison.
I am best know for my work in algebra and number theory, especially Diophantine analysis and the indeterminate equation ax^{2} + 1 = y^{2} where a is a nonsquare integer.
Though the previous equation now bears my name, it was actually posed by Pierre de Fermat...all I did was publish John Wallis' solution to it as an addendum in someone else's algebra book.
Answer:
John Pell (16111685)
