If you came from siegelord, these appear to be similar to squires, but only slightly. You can add them on to your character and they fight along with your general and his squad.

Name - stats (where you can get them and cost)

Elizabeth - Passive Skill, DMG reduction +24%; has 50%HP of your hero (exchange store, 200 Diamonds)
Tamamo-no-Mae - ATK +3% (7 day top up, ie $14) (this is the 2nd 7 day top up)
Cleopatric - ATK DMG reduction +24%; has 50% HP of your hero (VIP 8)
Joan of Arc - Passive Skill, DEF bonus +4%; Has 50% HP of the hero (Special Discount purchase - 4888 gold (little less than $100))