12 Monarchies
Bloodlines?
There remain, as of 2016, twelve (12) sovereign monarchies in Europe. Seven are kingdoms: Denmark, Norway, Sweden, the United Kingdom, Spain, the Netherlands and Belgium. Andorra, Liechtenstein, and Monaco are principalities, while Luxembourg is a Grand Duchy. The Vatican City is a theocratic state ruled by the Pope.
https://en.wikipedia.org/wiki/Monarchies_in_Europe
The kings of Spain via descent from the Catholic Monarchs (via the House of Habsburg), ultimately combining the lines of succession of Castile and León and Aragon, realms established in the 10th to 11th centuries in the course of the Reconquista, via the Kingdom of Asturias claiming descent from the Visigothic Kingdom (which, originally ruled by the Thervingi kings, had become elective in the 6th century). The monarchy of Spain was abolished twice in the 19th & 20th centuries (1873-1874 and 1931-1947) and replaced by republics.
The term Catholic Monarchs[a][b] refers to Queen Isabella I of Castile[1] and King Ferdinand II of Aragon, whose marriage and joint rule marked the de facto unification of Spain.[2] They were both from the House of Trastámara and were second cousins, being both descended from John I of Castile; on marriage they were given a papal dispensation to deal with consanguinity by Sixtus IV. They married on October 19, 1469,