Charles The Hammer Martel was the son of Pepin of Herstal and his second wife Alpaida. He had a brother named Childebrand, who later became the Frankish dux (that is, duke) of Burgundy. In older historiography, it was common to describe Charles as illegitimate.
Walking each mile in 20 minutes. If you feel comfortable and safe going a bit faster, a better workout is available in the same one-hour time period. By increasing the treadmill rate to 3 miles per hour, that 150 pound person would burn about 400 calories per hour on a level treadmill.
Walking at this pace would take 20 minutes to complete one mile. While 20 minutes satisfies the minimum daily requirements set forth by the CDC, to reach optimal health, 1 mile is insufficient. To exercise for 300 minutes weekly, you would need to walk slightly over 2 miles at 3 mph.