Question: Who trained with a ballerina that was the first ballerina to tour ballet around the world?
Context: Marie Taglioni (23 April 1804 – 22 April 1884) was a ballet dancer of the Romantic ballet era, a central figure in the history of European dance.  She was one of the most celebrated ballerinas of the romantic ballet, which was cultivated primarily at Her Majesty's Theatre in London, and at the Théâtre de l'Académie Royale de Musique of the Paris Opera Ballet.  She is credited with (though not confirmed) being the first ballerina to truly dance en pointe. Valentina Kozlova (born August 26, 1957) is a Soviet-born Russian American ballerina and founder of Valentina Kozlova International Ballet Competition.  In 1979, while on tour as a young principal dancer with the Bolshoi Ballet, Kozlova defected to the United States, where she became a principal dancer with New York City Ballet and later, opened her own ballet school.  Perhaps best known as a lyrical and expressive ballerina, Kozlova is also renowned as a private coach, producing students who have gone on to garner prestigious prizes and positions in companies such as Boston Ballet, American Ballet Theatre Washington Ballet, Stuttgarter Ballet, Les Ballets Trocadéro de Monte Carlo, Universal Ballet, and the National Ballet of Cuba. Alina Frasa (1834-1899) was a Finnish ballerina.  She is regarded as the first ballerina in Finland. Dame Alicia Markova DBE (1 December 1910 – 2 December 2004) was an English ballerina and a choreographer, director and teacher of classical ballet.  Most noted for her career with Sergei Diaghilev's Ballets Russes and touring internationally, she was widely considered to be one of the greatest classical ballet dancers of the twentieth century.  She was the first British dancer to become the principal dancer of a ballet company and, with Dame Margot Fonteyn, is one of only two English dancers to be recognised as a prima ballerina assoluta.  Markova was a founder dancer of the Rambert Dance Company, The Royal Ballet and American Ballet Theatre, and was co-founder and director of the English National Ballet. Ballet Manila is a classical ballet institution and dance company in the Philippines.  It currently highlights more than fifty highly trained dancers in the highly rigorous Russian (Vaganova) method of classical ballet.  Locally the company has performed in 47 cities holding more than 4,100 performances.  The company has done tours in Asia, Europe and North America, where it has held more than 140 performances.  The company is most notable for its in-house creative director, principal dancer and prima ballerina Lisa Macuja-Elizalde.  Along with Ballet Philippines and the Philippine Ballet Theatre, Ballet Manila is one of the three major ballet companies in the Philippines.  It regularly holds its performances at the Aliw theater and Star Theater, which are both located within Star City at Pasay City.  The concept of a ballet company by the dancers, of the dancers and for the dancers was the idea of Lisa Macuja-Elizalde when she, along with ballet master Osias Barroso and ten other dancers established Ballet Manila in 1995. Lydia Sokolova (1896–1974) was an English ballerina.  She trained at the Stedman Ballet Academy and learned from such luminaries as Anna Pavlova and Enrico Cecchetti. Prima ballerina assoluta is a title awarded to the most notable of female ballet dancers. To be recognised as a "prima ballerina assoluta" is a rare honour, traditionally reserved only for the most exceptional dancers of their generation.  Originally inspired by the Italian ballet masters of the early Romantic ballet, and literally meaning "absolute first ballerina", the title was bestowed on a prima ballerina who was considered to be exceptionally talented, above the standard of other leading ballerinas.  The title is very rarely used today and recent uses have typically been symbolic, either in recognition of a prestigious international career, or for exceptional service to a particular ballet company.  There is no universal procedure for designating who may receive the title, which has led to dispute in the ballet community over who can legitimately claim it.  It is usually a ballet company that bestows the title, however some dancers have had the title officially sanctioned by a government or head of state, sometimes for political rather than artistic reasons.  Less common is for a dancer to become identified as a "prima ballerina assoluta" as a result of public and critical opinion. Gamar Hajiaga qizi Almaszadeh (Azerbaijani: "Qəmər Hacıağa qızı Almaszadə" ) (10 March 1915, Baku – 7 April 2006, Baku) was an Azerbaijani ballerina and ballet instructor.  She's considered the first ballerina of the Muslim world. Anna Pavlovna (Matveyevna) Pavlova (Russian: Анна Павловна (Матвеевна) Павлова ; February 12 [O.S. January 31] 1881 – January 23, 1931) was a Russian prima ballerina of the late 19th and the early 20th centuries.  She was a principal artist of the Imperial Russian Ballet and the Ballets Russes of Sergei Diaghilev.  Pavlova is most recognized for the creation of the role "The Dying Swan" and, with her own company, became the first ballerina to tour ballet around the world. Lisa Teresita Pacheco Macuja-Elizalde (born October 3, 1964) is a Prima Ballerina.  In 1984, she became the first Filipina prima ballerina, and first foreign soloist to ever join the Kirov Ballet.  In the Philippines, she is the Artistic Director of Ballet Manila and Vice-Chairman of the Philippine UNESCO National Commission.  She was also the Commissioner of the National Commission on the Role of Filipino Women.  Macuja-Elizalde is also Directress and faculty member of the Ballet Manila School – a training center for ballet professionals who are steeped in the Russian Vaganova method.
Answer: Lydia Sokolova