Royals British Royal Family British Royal Family Weddings Meghan Markle's Comment About Kate Middleton's 'Baby Brain' Caused Heated Exchange, Prince Harry Recalls In Spare, the Duke of Sussex said Kate confronted Meghan over a comment she made shortly after welcoming son Prince Louis By Monique Jessen Monique Jessen Monique Jessen is a UK-based journalist with over 20 years experience interviewing celebrities, reporting on the British royal family and covering style People Editorial Guidelines Published on January 5, 2023 02:19PM EST Prince Harry recalled an argument between his wife Meghan Markle and his sister-in-law Kate Middleton in his upcoming memoir. In a report on Spare published by the Daily Mail, Prince Harry described a confrontation between the two women after Meghan referenced Kate's "baby brain because of her hormones" during a discussion ahead of Prince Harry and Meghan's May 2018 wedding. Kate, who gave birth to her third child Prince Louis one month before the Duke and Duchess of Sussex's nuptials, decided to raise the prior conversation with Meghan. "It caused such a huge row because Meghan was told that she wasn't close enough to her sister-in-law to discuss her hormones, and it wasn't the way people spoke to each other within the Royal Family," a source told the outlet. Meghan, in turn, was reportedly offended by the reprimand. Prince Harry Drove Through Tunnel Where His Mother Died at Same Speed: 'I Want to Go Through It' Prince Harry, Meghan Markle, Kate Middleton and Prince William. Chris Jackson - WPA Pool/Getty Meghan had previously discussed the dispute over bridesmaid dresses in her 2021 interview with Oprah Winfrey. After media outlets reported that Meghan made Kate cry in the lead-up to the royal wedding over Princess Charlotte's dress, Meghan gave her own version of events. "The reverse happened," she said. "And I don't say this to be disparaging to anyone, because it was a really hard week of the wedding, and she was upset about something. But she owned it, and she apologized and brought me flowers and a note apologizing," Meghan said. Kate Middleton and Meghan Markle. BEN CURTIS/AFP via Getty Can't get enough of PEOPLE's Royals coverage? Sign up for our free Royals newsletter to get the latest updates on Kate Middleton, Meghan Markle and more! In the memoir, Prince Harry reflected on Prince William and Kate's 2011 wedding, recalling that it felt like "yet another farewell," in an excerpt published by Us Weekly. The book jacket of Prince Harry's memoir 'Spare'. PENGUIN RANDOM HOUSE "The brother I'd escorted into Westminster Abbey that morning was gone — forever," Prince Harry reportedly wrote. "Who could deny it? He'd never again be first and foremost Willy. We'd never again ride together across the Lesotho countryside with capes blowing behind us. We'd never again share a horsey-smelling cottage while learning to fly. Who shall separate us? Life, that's who." He added, "And I recall Willy walking her back up the aisle, and as they disappeared through the door, into the carriage that would convey them to Buckingham Palace, into the eternal partnership they'd pledged, I recall thinking: Goodbye."