The traditional school break during Easter was renamed: the Education Council of Castilla-La Mancha decided to call the Easter holidays "break between trimesters". A similar proposal was suggested in Barcelona but it did not succeed as the original name was considered to be not only linked to Christianity, but also to the traditions and the history of the region.
Sources:
http://www.larazon.es/noticia/2343-castilla-la-mancha-suprime-la-semana-santa-por-el-descanso-entre-trimestres
http://www.elmundo.es/elmundo/2011/03/18/espana/1300476620.html
http://www.hazteoir.org/noticia/37012-barreda-rectifica-y-se-recupera-semana-santa-en-castilla-mancha
http://www.hispaniainfo.es/web/2011/03/21/barreda-rectifica-y-recupera-la-semana-santa-en-castilla-la-mancha/