Queen Letizia smiles with King Felipe at the launch of an international tourism fair in Madrid

Queen Letizia of Spain triumphed in the style battle on Wednesday when she donned a monochrome jumpsuit to attend an international tourism fair in Madrid with husband King Felipe VI.

The 51-year-old monarch, who is known for her fashionable choices, wore the all-in-one from Spanish designer Teresa Helbig with a pair of black pumps from another local brand, PINKCHIC guagua.

Previously, in November 2022, Letizia paired the £3,000 jumpsuit with a pair of knee-high boots to attend a scientific business forum in Zagreb, Croatia.

This time she accessorised the outfit, which combines wide-leg trousers and a cream and black button-up blouse, with a wide black waist belt.

The high-quality jumpsuit also featured stylish ruffles at the neck and cream-colored cuffs.

Letizia was with her husband, King Felipe VI, who looked dapper in a gray pinstripe suit paired with a red tie

Letizia kept her makeup simple and wore her brown locks loosely behind her ear, revealing delicate diamond earrings.

She was accompanied at the 44th edition of the Fitur International Tourism Fair by her husband King Felipe, who looked dapper in a gray pinstripe suit and red tie.

Walking close together, the couple looked the picture of happiness as they chatted and laughed as onlookers took pictures on their phones.

The Spanish royal family has been rocked in recent months following sensational claims by Letizia's former brother-in-law that they had an affair before and after her marriage to King Felipe in 2004.

Her performance together with her husband on Wednesday comes after Jaime Peñafiel, 91, who made a series of bombshell accusations about Queen Letizia in the book 'Letizia & I', was fired by the newspaper where he had worked for 20 years.

Late last year, the veteran journalist sent shockwaves through Spain's royal family after claiming the Queen was romantically involved with her ex-brother-in-law.

The book relied heavily on allegations made by Jaime Del Burgo, 53, who sensationally claimed he was still in a relationship with Letizia after her marriage to King Felipe in 2004.

The businessman told the author that he met Letizia before 2000 and that their relationship began during a romantic trip to Venice, years before she met King Felipe.

Queen Letizia and King Felipe were seen smiling and laughing as they attended the launch of the Fitur fair

Letizia wore her long brown hair down and tucked behind her ears, revealing a pair of delicate diamond earrings

With natural makeup and a glossy lip, she looked radiant as she smiled and waved to onlookers

The journalist spoke to Argentine publication Semana this weekend and confirmed that he was no longer employed by El Mundo.

During the interview, the journalist denied that the decision to leave El Mundo was made months ago.

Initial reports in Spanish media claimed that Jaime Peñafiel was fired due to 2024 budget constraints.

However, the author claimed that the decision to fire him was made the day he complained about a “highly offensive” article printed about him.