White Knight - OSRS Wiki

White knights are found at the White Knights' Castle in Falador. Their helmets' plume colour indicates what combat level they are. The initiates (red plume) are level 36, the proselytes (yellow plume) are level 38, the acolytes (green plume) are level 39, and the partisans (blue plume) are level 42. The partisans can hit up to 7 damage; all the lower classes have a max hit of 6.

White Knight - OSRS Wiki

Love the wiki but sometimes, the gear recommendations are like

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White Knight - OSRS Wiki

Black Knight - OSRS Wiki

From the new OSRS Wiki TOA Calculator, these are the solo drop

White Knights' Castle - OSRS Wiki

White equipment - OSRS Wiki