St. Simon's sire line has continued to modern times through Rabelais down to Ribot, the two-time winner of the Arc de Triomphe and a major sire in England and the United States. Ribot left behind many successful sons to carry on the line, although the number of male-line descendants has dwindled in the 21st century. However, St. Simon is a pervasive influence in the breed through other lines of descent. For example, Nearco, inbred 5 x 4 × 4 × 5 to St. Simon, would found the most dominant Thoroughbred sire-line of the following century. Nearco's grandson Northern Dancer, another enormously influential sire, has fifteen crosses to St. Simon in the first eight generations of his pedigree. Pedigree expert Anne Peters refers to his bloodline as "one of the most widespread and omnipresent in the Thoroughbred gene pool today."