Conversation so far:
how did Vaslav Nijinsdky's career start?
Vaslav Nijinsky danced in the Mariinsky production of Mozart's Don Giovanni, in a ballet sequence choreographed by Michel Fokine.
what did Vaslav Nijinsky  do after he danced in the Mariinsky production of Mozart's Don Giovanni, in a ballet sequence choreographed by Michel Fokine.t?
Vaslav Nijinsky performed at Krasnoe Selo in a makeshift theatre. These performances included members of the Imperial family and other nobility, whose support and interest were essential to a career
why were these performances that included members of the Imperial family and other nobility, whose support and interest essential for Vaslav Nijinsky?
how much was Vaslav Nijinsky's salary?
a salary of 780 roubles per year
did Vaslav dance with anybody famous?
the dancer Lydia Kyasht
did Vaslav Nijinski ever get married?
Vaslav Nijinsky married on September 10,1913
what else happened to Vaslav Nijinsky?
Vaslav Nijinsky performed at Krasnoe Selo in a makeshift theatre with an audience mainly of army officers. These performances frequently included members of the Imperial family and other nobility
did Vaslav Nijinsky spend a lot of time with the royal family?

Question: how the imperial family help his career?
Self-contained rewrite: how the imperial family help Vaslav Nijinsky's career?