House of Saxe-Coburg and Gotha
It was only in the 19th century that one of the many Ernestine branches, the House of Saxe-Coburg and Gotha, regained importance through marriages as the "stud of Europe", by ascending the thrones of Belgium (in 1831), Portugal (1853–1910), Bulgaria (1908–1946) and the United Kingdom (in 1901).