Britain's Prince Harry is penning an intimate and honest memoir that will expose the "mistakes" and "lessons learned" across his life, publisher Penguin Random House said Monday. The announcement comes at a time of strained relations between Harry and the British royal family, amid allegations by his wife Meghan of bullying and royal racism, and the couple's shock move to the United States last year.

It will be the first time a senior British royal has ever written such a book, according to British media reports.

"I'm writing this not as the prince I was born but as the man I have become," said Prince Harry in a statement published by Penguin Random House.

"I've worn many hats over the years, both literally and figuratively, and my hope is that in telling my story—the highs and lows, the mistakes, the lessons learned—I can help show that no matter where we come from, we have more in common than we think.

"I'm deeply grateful for the opportunity to share what I've learned over the course of my life so far and excited for people to read a firsthand account of my life that's accurate and wholly truthful."

Unveiling the plans on Twitter, the giant New York-based publishing house described the book—scheduled for late next year—as "an intimate and heartfelt memoir from one of the most fascinating and influential global figures of our time." The book will cover his childhood—Harry was just 12 years old when his mother, Prince Diana, died in a Paris car crash—as well as his military service, including two tours of Afghanistan. The "honest and captivating personal portrait" will also recount the "joy he has found in being a husband and father," according to the publisher.