He was British writer, wrote mostly adventure fiction.

British writer

Percival Christopher Wren was a British writer ..........

Percival Christopher Wren (1 November 1875[1] 22 November 1941) was a British writer, mostly of adventure fiction. He is remembered best for Beau Geste, a much-filmed book of 1924, involving the French Foreign Legion in North Africa, and its main sequels, Beau Sabreur and Beau Ideal (in fact the so-called "trilogy" was extended in Good Gestes and Spanish Maine, so John Geste adventures feature in five books).

Wren dedicated an early edition (no date known) of The Snake and the Sword to "my wife Alice Lucille Wren". An early edition of Driftwood Spars reads: "To the memory of my beloved wife."[citation needed]

Isabel was his second wife. She had previously been married to Cyril Graham Smith, a civil engineer employed in the Indian educational service at Poona. In 1927, Graham Smith filed for divorce, with Wren named as co-respondent. The divorce was granted, and a letter by Isabel to Ronald Colman (who played Beau Geste in the silent film) in 1929 on behalf of her "seriously ill" ...more

Source: google search

A britisher and the author of Beau Geste