Which Viennese composer, remembered for "The Blue Danube," was known as "The Waltz King"?

Johann Strauss, often referred to as "The Waltz King," is celebrated for his significant contributions to the genre of waltz music, with "The Blue Danube" being one of his most famous compositions. This piece exemplifies the light, flowing style of the waltz that Strauss popularized in the 19th century, perfectly capturing the elegance and charm of Viennese dance music. His ability to evoke the spirit of dance and celebration in his compositions contributed to his enduring legacy as a leading figure in this musical form. Strauss's mastery of melody, rhythm, and orchestration is particularly evident in "The Blue Danube," which remains a staple in concert repertoires and various cultural celebrations. Other composers mentioned, like Mozart, Schubert, and Brahms, while incredibly talented and influential in their respective styles, did not focus predominantly on waltzes nor were they nicknamed "The Waltz King."