Person
Khalid ibn al-Walid
خالد بن الوليد
Abu Sulaiman · Sayf Allah al-Maslul
592 CE – 642 CE(aged ~50)
A military commander from Banu Makhzum who initially opposed Muhammad but later became a key Muslim general in the Ridda wars and Muslim conquest of Syria.
Significance
Key Muslim commander who reinforced Yazid in battle against Byzantine forces
Stated motivation
Military leadership in early Islamic conquests
Sources: Wikipedia and classical Islamic biographical literature compiled by automated researchers. Every page is being continuously refined — if something looks off, please check back in a few days.