Barcelona will face Real Madrid in the semifinal of the Copa del Rey after the two clubs were paired together in Monday's draw.
The first leg will be played at the Santiago Bernabeu and the return game at Camp Nou.
Osasuna and Athletic Club will meet in the other final four tie, with the former at home first.
Madrid's participation in the Club World Cup has forced the RFEF to alter the dates for the semifinal games.
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The first legs will be played on the 28th February or the 1st or 2nd of March and the second legs on the 4th, 5th or 6th of April.