Queen Alexandra's father and brother were kings of Denmark. Her father, Christian IX, became king in 1863, while her brother later ruled as Frederick VIII from 1906 to 1912.
Alexandra was born Princess Alexandra of Schleswig-Holstein-Sonderburg-Glücksburg in 1844. Her family initially lived relatively modestly, but Christian IX's children married into several European royal houses. Alexandra became Queen of the United Kingdom after marrying Albert Edward, later King Edward VII, in 1863.
Her brother Frederick VIII succeeded their father on the Danish throne. Another brother, William, became King George I of Greece, which can cause confusion when recalling Alexandra's royal family. Denmark's dynasty also produced several later European monarchs through Alexandra's siblings and descendants.