What was Sir Isaac Newton's middle name?

There is not enough evidence to prove that Sir Isaac Newton had a middle name. However, it is often debated because some sources suggest that his full name was Lawrence Isaac Newton James.

Sir Isaac Newton was born in England in 1643 and died in 1727. He was a physicist and a mathematician. While Newton was often criticised for his theories, he is known for proposing that the planets revolve around the sun and for his contributions to optics, classical mechanics and calculus. He was the first scientist to be knighted by a queen in England for his contributions to society.