Reuters — Britain's Prince William and his wife, Kate, have named their newborn son Louis Arthur Charles, a nod to both his grandfather and heir to the throne and one of his most beloved mentors.

The prince, who is fifth in line to the British throne, will be known as His Royal Highness Prince Louis of Cambridge, Kensington Palace said Friday.

Prince Louis, the third child for William and Kate, was born on April 23 weighing 8 pounds, 7 ounces (3,830 grams).