About Luís I of Portugal
Dom Luís I, known as "the Popular" was King of Portugal from 1861 to 1889. He had his first naval command in September 1857, on the brig Pedro Nunes, in which he made a cruise off the coast of Portugal and a trip to Gibraltar. Luís followed in the footsteps of his mother, Maria II, by having cultural associations built and founded. On 1 June 1871, Luís was in Seixal (a town founded by his mother) to witness the founding of the Sociedade Filarmónica União Seixalense. They both had a deep love at first, but Luís's countless mistresses led Maria Pia to depression.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.