Original: In 1334 Giotto was appointed chief architect to Florence Cathedral, of which the Campanile (founded by him on July 18, 1334) bears his name, but was not completed to his design.
Simplified: In 1334 Giotto was appointed chief architect to Florence Cathedral, of which the Campanile (founded by him on July 18 1334) bears his name, but was not completed to his design.