Yanowsky's parents, Russian ballet dancer Anatol Yanowsky and Spanish ballet dancer Carmen Robles, were both dancers with the Lyon Opera Ballet. Later, the family settled in Las Palmas, Gran Canaria, where her parents set up a dance school. Although Yanowsky, along with her siblings, took dance classes at her parents' school, it was not until she turned 14 that she decided to become a professional dancer.
http://en.wikipedia.org/wiki/Zenaida_Yanowsky

Zenaida Yanowsky is a Principal of The Royal Ballet. She joined the Company as a First Artist in 1994 and was promoted to Soloist in 1996, First Soloist in 1999 and Principal in 2001. Her many roles include Odette/Odile (Swan Lake), Marguerite, Manon, Natalia Petrovna (A Month in the Country) and Principal roles in 'Rubies' (Jewels), Apollo and In the Night. She has created roles for choreographers including Kim Brandstrup, Will Tuckett, Alexei Ratmansky and Christopher Wheeldon, creating for Wheeldon the Queen of Hearts (Alice's Adventures in Wonderland) and Paulina (The Winter's Tale).
http://www.roh.org.uk/people/zenaida-yanowsky