March 26, 1517:
Henricus Isaac dies in Florence, Republic of Florence, aged about 70 years.
November 15, 1863:
The Vienna Singakademie gives its first concert under the direction of Johannes Brahms (30). The eclectic program includes Viennese premieres of the Cantata no.21 of Johann Sebastian Bach (†113), Requiem für Mignon by Robert Schumann (†7) as well as works by Isaac (†346) and Beethoven (†36) and folksong arrangements. It is well received.
October 16, 1874:
Blanca Albéniz, 19-year-old sister of Isaac (14), kills herself in the Retiro, a large park near the Prado in Madrid. She is a singer and has failed to win a contract at the Teatro de la Zarzuela. Isaac Albéniz will end his concert tour, currently in Barcelona, and return home to Madrid.
