What was C.S. Lewis’s birth name, given in Belfast in 1898?

C.S. Lewis’s birth name, given in Belfast in 1898, was Clive Staples Lewis.

Lewis was born on 29 November 1898 in Belfast, Ireland, then part of the United Kingdom. His parents were Albert James Lewis, a solicitor, and Florence Augusta Lewis, who was known as Flora. The initials “C.S.” later became the form by which he was publicly known.

As a child, Lewis was called “Jack” by family and friends. The nickname reportedly arose after the death of his childhood dog, whom he associated with the name Jacksie. Lewis eventually adopted “Jack” as his preferred personal name, but his published works appeared under C.S. Lewis.

His formal name is sometimes confused with “Clive Hamilton Lewis,” a pseudonym he used for some early poetry. “Clive Staples Lewis” is the name recorded for the author of The Chronicles of Narnia and his Christian apologetic works.