According to The New Penguin Dictionary of Music
, Tomás Luis De Victoria was a Spanish composer (also poet) who worked in Rome for nearly 20 years (hence Vittoria, the sometimes-encountered Italian form of his name). Then took up a church choirmaster's post in Madrid and died there. Composed only church music, including settings of all the hymns of the Roman Catholic liturgical year; 19 masses, among them a Requiem Mass for the Spanish Dowager Empress; motets. Associated in Rome with G. P. da Palestrina
, to whose style his own is related.