zsroj: https://www.google.com/search?q=francis+danby&sa=X&biw=1920&bih=888&tbm=isch&source=iu&ictx=1&fir=hQbwtb02Kmvj7M%253A%252C3F32KGTxHGVT4M%252C%252Fm%252F070cmf&vet=1&usg=AI4_-kQbgKSYSxITWCNuH-kP5DkIe8kMYQ&ved=2ahUKEwjSlIyx88riAhXIZlAKHYBZCr4Q_B0wDno