1564 – He was born on October 25th in Nürnberg as son of the organist Isaac Hassler, who originally came from Joachimsthal. German composer, one of the greatest German masters at the high tide of renaissance music.
1584 – He left to receive instruction in Italian music at its source fromAndrea Gabrieli in Venice.
1585 – Hans Leo Hassler was recalled to Germany to become private organist to Count Ottavianus (Octavian) Fugger, the great merchant prince and art patron of Augsburg
1595 – Hassler, together with his brothers Jacob and Gaspard was raised to the nobility by the Emperor Rudolph II.
1601 – His best Lieder collection is the Lustgarten,with its dance songs and instrumental intradas for consort.
1604-1605 – He changed his residence to Ulm and there married the daughter of a local merchant.
1607 – Hassler published his ‘Psalmen und christ.liche Gesäng mit vier stimmen auf die Melodien fugweis componirt’.
1608 – Moved to Dresden, where he was appointed court organist by the Elector of Saxony and given charge of the latter’s library of music.
1612 – He died of consumption on June 8th at Frankfort- am-Main, whence he had accompanied the Elector for the coronation of the new Emperor.