A lot of battles, but they are usually brief with little to no blood seen.
A crusader is slashed in the face and dragged by his horse during the Battle of Hattin. No blood is seen.
Saladin cuts Raynald de Châtillon's head off. We see blood squirt onto a man's face. After this we see Raynald's head roll onto the floor.
One Crusader describes eating children at Maarrat al-Nu'man. This could be very disturbing to some viewers.