The Nuttall Encyclopedia
"the father of English cathedral music," born in the reign of Henry VIII., lived well into the reign of Elizabeth; was an organist, and probably "a gentleman of the Chapel Royal"; composed various anthems, hymns, Te Deums, etc., including "The Song of the Forty Parts" (c. 1515-1585).
Wood, James, ed. Entry for 'Tallis, Thomas'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/t/tallis-thomas.html. Frederick Warne & Co Ltd. London. 1900.