Born: 6 February 1695 in Basel, Switzerland
Died: 31 July 1726 in St Petersburg, Russia

Nicolaus(II) Bernoulli was the favourite of three sons of Johann Bernoulli. He entered the University of Basel when only 13 years of age and, like many other members of his family, studied both mathematics and law. In 1715 he became a licentiate in jurisprudence.

Nicolaus worked as his father's assistant helping him with correspondence. In particular he was involved with writing letters concerning the famous priority dispute between Newton and Leibniz. He not only replied to Taylor regarding the dispute but he also made important mathematical contributions to the problem of trajectories while working on the mathematical arguments behind the dispute.

Nicolaus worked on curves, differential equations and probability. He died only 8 months after taking up an appointment in St Petersburg at a young age when his talents promised so much for the future. Fleckstein writes in [1]:-

1. J O Fleckenstein, Biography in Dictionary of Scientific Biography (New York 1970-1990). 
   http://www.encyclopedia.com/doc/1G2-2830900411.html

Books:

1. H Bernhard, The Bernoulli family, in H Wussing and W Arnold, Biographien bedeutender Mathematiker (Berlin, 1983).
2. V A Nikiforovskii, The great mathematicians Bernoulli (Russian), History of Science and Technology Nauka' (Moscow, 1984).

Articles:

1. M Hürlimann (ed.), Die Mathematikerfamilie Bernoulli, Grosse Schweizer (Zürich, 1942), 112-119.
2. A P Yushkevich, Nikolas Bernoulli and the publication of 'Ars conjectandi' by Jacob Bernoulli (Russian), Teor. Veroyatnost. i Primenen. 31 (2) (1986), 333-352.