On 11 June 1867, Grieg married his first cousin Nina. The next year their only child, Alexandra, was born. The following summer, Grieg wrote his Piano Concerto in A minor while on holiday in Denmark. Edmund Neupert gave the concerto its first performance on 3 April 1869 in the Casino Theater in Copenhagen. Grieg himself was unable to be there because he was conducting in Christiana (now called “Oslo”).