Spanish Royal Family Visits King Juan Carlos At La Moraleja Hospital on April 8, 2018 in Madrid, Spain.

Queen Letizia of Spain (R) and Queen Sofia (L) arrives at La Moraleja Hospital to visit King Juan Carlos in Madrid, following his knee operation.

Queen Letizia of Spain opted for a chic trench coat for the hospital visit, while Queen Sofia wrapped up in a black puffer coat, waves to well-wishers as they arrived at the La Moraleja Hospital together.

Queen Letizia of Spain (R) and Queen Sofia (L) visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain. King Juan Carlos has been surgery on his right knee to replace an old prosthesis.

King Felipe VI of Spain (L), Queen Letizia of Spain (R) and Queen Sofia (C) visit King Juan Carlos at La Moraleja Hospital on April 7, 2018, in Madrid, Spain.

Queen Letizia of Spain (L) and Queen Sofia (R) vsisit King Juan Carlos at La Moraleja Hospital on April 7, 2018, in Madrid, Spain.

Queen Letizia of Spain (R) and Queen Sofia (L) vsisit King Juan Carlos at La Moraleja Hospital on April 7, 2018, in Madrid, Spain.

Queen Sofia (L) Infanta Elena of Spain (C) and her son Felipe Juan Froilan de Marichalar visit King Juan Carlos at La Moraleja Hospitalon on April 8, 2018, in Madrid, Spain.

Queen Letizia of Spain (L), Queen Sofia (2R), Princess Leonor (2L) and Infanta Sofia (R) visit King Juan Carlos at La Moraleja Hospitalon April 8, 2018, in Madrid, Spain.

Queen Sofia and Inanta Elena of Spain's son Felipe Juan Froilan de Marichalar and daughter Victoria Federica de Marichalar visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Queen Letizia of Spain (R), Queen Sofia (L) and Princess Leonor visit King Juan Carlos at La Moraleja Hospitalon April 8, 2018, in Madrid, Spain.

(L) Queen Sofia and Infanta Elena of Spain's daughter Victoria Federica de Marichalar visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Queen Letizia of Spain (R), Queen Sofia (L) and Princess Leonor visit King Juan Carlos at La Moraleja Hospitalon  in Madrid, Spain.

Both Princess Leonor of Spain (R) and younger sister Infanta Sofia of Spain (2nd-L) looked in high spirits with matching Burberry trench coats as they arrived at the hospital with their parents King Felipe VI of Spain and Queen Letizia of Spain who looked in a chic striped top and jeans with black coat, smiled for cameras as the family posed outside the hospital.

Queen Sofia and Infanta Elena of Spain's son Felipe Juan Froilan de Marichalar and daughter Victoria Federica de Marichalar visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Queen Letizia of Spain looked chic in a striped top and jeans with a black coat over the top with her daughters Princess Leonor of Spain (R) and Infanta Sofia of Spain (L) looked in high spirits as they arrived in matching trench coats for the visit at the La Moraleja Hospital

King Felipe VI of Spain, Queen Letizia of Spain (2L), Queen Sofia (2R), Princess Leonor (C) and Infanta Sofia (R) visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Queen Letizia of Spain looked chic in a striped top and jeans with a black coat over the top with her daughters Princess Leonor of Spain (R) and Infanta Sofia of Spain (L) looked in high spirits as they arrived in matching trench coats for the visit at the La Moraleja Hospital

Queen Letizia of Spain, Princess Leonor (R) and Infanta Sofia visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Infanta Sofia of Spain in a Burberry trench coat arrived at the hospital in Madrid

Queen Letizia of Spain and eldest daughter Princess Leonor of Spain in Burberry trench coat, arrived at La Moraleja Hospital in Madrid.

Queen Letizia of Spain and Princess Leonor of Spain seen leaving after visiting King Juan Carlos at La Moraleja Hospital on April 8, 2018, in Madrid, Spain.

Infanta Elena of Spain visits King Juan Carlos at La Moraleja Hospitalon in Madrid, Spain.

Infanta Elena of Spain arrived at the La Moraleja Hospital in Madrid, Spain.

 Infanta Elena of Spain visits her father King Juan Carlos at La Moraleja Hospital on April 8, 2018, in Madrid, Spain.

Infanta Elena of Spain waves seen leaving after her visits at La Moraleja Hospital in Madrid, Spain.

Infanta Elena of Spain waves to well-wishers after her visits to King Juan Carlos at La Moraleja Hospital on April 8, 2018, in Madrid, Spain.

Infanta Elena of Spain seen leaving the La Moraleja Hospital in Madrid, Spain.

Infanta Elena of Spain and her son Felipe Juan Froilan de Marichalar visit King Juan Carlos at La Moraleja Hospital on April 8, 2018, in Madrid, Spain.

Infanta Elena of Spain and her son Felipe Juan Froilan de Marichalar visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Queen Letizia of Spain, Princess Leonor (R) and Infanta Sofia visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

(L) Queen Letizia of Spain looked the picture of happiness as Queen Sofia held the hands of Princess Leonor, and young Infanta Sofia (R) as the family posed outside the La Moraleja Hospital in Madrid.

(L-R) King Felipe VI of Spain, Queen Letizia of Spain, Princess Leonor of Spain, Queen Sofia and Infanta Sofia of Spain posed for pictures after arriving to visit King Juan Carlos at the La Moraleja Hospital in Madrid.

King Felipe of Spain visits his father King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Queen Sofia (2nd-R) Infanta Elena of Spain (L), her son Felipe Juan Froilan de Marichalar and her daughter Victoria Federica de Marichalar (R) visit King Juan Carlos at La Moraleja Hospital on April 8, 2018, in Madrid, Spain.

Infanta Elena of Spain and her son Felipe Juan Froilan de Marichalar visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

(L-R) Infanta Elena of Spain, her son Felipe Juan Froilan de Marichalar, her mother Queen Sofia and her daughter Victoria Federica de Marichalar visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Infanta Elena of Spain visits King Juan Carlos at La Moraleja Hospital on April 8, 2018, in Madrid, Spain.

(L-R) Queen Sofia, her daughter Infanta Elena of Spain, and her grandson Felipe Juan Froilan de Marichalar visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Infanta Elena of Spain visits King Juan Carlos at La Moraleja Hospital on April 8, 2018, in Madrid, Spain.

(L-R) Infanta Elena of Spain, her son Felipe Juan Froilan de Marichalar, her mother Queen Sofia and her daughter Victoria Federica de Marichalar visit King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Infanta Pilar of Spain visits her younger brother King Juan Carlos at La Moraleja Hospital on April 9, 2018, in Madrid, Spain. King Juan Carlos has been surgery on his right knee to replace an old prosthesis.

Infanta Pilar of Spain visits her younger brother King Juan Carlos at La Moraleja Hospital on April 9, 2018, in Madrid, Spain.

Infanta Pilar of Spain visits her younger brother King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Infanta Pilar of Spain visits her younger brother King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Infanta Pilar of Spain visits her younger brother King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Infanta Pilar of Spain seen arriving at La Moraleja Hospital to visit her younger brother King Juan Carlos in Madrid. King Juan Carlos has been surgery on his right knee to replace an old prosthesis.

Infanta Pilar of Spain visits her younger brother King Juan Carlos at La Moraleja Hospital on April 9, 2018, in Madrid, Spain.

Infanta Pilar of Spain visits her younger brother King Juan Carlos at La Moraleja Hospital in Madrid, Spain.

Infanta Pilar of Spain seen leaving after her visits with King Juan Carlos at La Moraleja Hospital on April 9, 2018, in Madrid, Spain. King Juan Carlos has been surgery on his right knee to replace an old prosthesis.

Infanta Pilar of Spain visits her younger brother King Juan Carlos at La Moraleja Hospital in Madrid, Spain.