Necropolis Knights have a total armour save of 3+. This takes into account of the combined effects of the mount's Animated Construct special rule, and the rider's armour and high vantage point.
Source: Warhammer Fantasy: 8th Edition
Necropolis Knights have a total armour save of 3+. This takes into account of the combined effects of the mount's Animated Construct special rule, and the rider's armour and high vantage point.