Based off the Yeomen Warders created by Henry VII Tudor to guard the Tower of London in 1485, Tower Warders are available only from the White Tower wonder once you have researched Centralisation, either from your Nobles' Court or from the Tower itself, and resemble the Frankish-styled Halberdiers, but with two exceptions: the first is that they cost wealth and metal as opposed to food and wood, and while they are created much faster than normal light infantry are, they have exorbitant ramp costs. Nevertheless, these men perform as well as the Halberdiers of their Continental foes do on the field, and can be summoned fairly quickly - much more quickly than the average espadachine or halberdier, making them a great defensive unit for a commerce-minded faction.