A notice from the years 1211 to 1234 shows that there was a further castle zone expansion. At that time, Herdegen – most likely a son of Herdegen II, and thereby the third who went by this name – and a man named Embricho – possibly this Herdegen's brother – from Eberbach Monastery “the part of a vineyard on which they built their castle’s moat”. Windeck might have looked much as Karl Bronner has reconstructed it no later than that: in the centre the four-sided tower with entrance and wooden parapet eight metres high, girded by an inner wall with a moat and an outer wall, through which flowed either the Sülzbach or the flood channel. Between the walls stood living and working buildings. The core may only have served as a refuge, as suggested by the tower's limited land area and its difficult access.