Dom Carlos I, known as the Diplomat, the Martyr, and the Oceanographer, among many other names, was King of Portugal from 1889 until his assassination in 1908. He was the first Portuguese king to die a violent death since King Sebastian in 1578.

The Ducal Palace of Vila Viçosa is a royal palace in Portugal, located in the civil parish of Nossa Senhora da Conceição, in the municipality of Vila Viçosa, in the Alentejo, situated about 150 km east of the capital Lisbon. It was for many centuries the seat of the House of Braganza, one of the most important noble houses in Portugal. Braganza was the ruling house of the Kingdom of Portugal from 1640 until 1910, when King Manuel II, titular head of the family, was deposed in the 5 October 1910 Revolution which brought in a Republican government.