Beowulf

Beowulf is the story of a Scandinavian warrior who becomes king of Geatland by slaying monsters and doing good to the common person.
The poem itself is the oldest surviving epic in British literature. Beowulf exists in only one manuscript. This copy survived both the wholesale destruction of religious artifacts during the dissolution of the monasteries by Henry VIII.

The number 7 badass on the Top 10 Badass List

Ghengis (Chingis) Khan

In 1211, Chingis Khan took 65,000 men and marched against the Jin Empire of Northern China. At this time, the Great wall was not operational, and the Jin had built other fortifications. With the help of the Ongguts, a people who lived on the Jin’s northern border, Chingis Khan easily passed through the defenses and marched into Jin territory. He continued a trail of plunder until he met a large force of around 150,000 men, which he defeated. Chingis split his army and launched a multiple pronged attack on the Jin. He and his generals dealt several blows against the Jin, including capturing the strategic Juyong pass. Unfortunately, Chingis was wounded during a siege and withdrew to Mongolia. Subsequently, Jin forces began to recapture territories loss to the Mongols.
At any rate, Chingis Khan was indeed badass material

The number 8 badass on the Top 10 Badass List