▁of ▁its ▁most ▁elaborate ▁decor ation . ▁It ▁is ▁ ▁high ▁and ▁surrounded ▁by ▁a ▁gallery ▁in ▁its ▁upper ▁half ▁built ▁into ▁the ▁thick ness ▁of ▁the ▁walls . ▁The ▁floor ▁also ▁had ▁a ▁chap el ▁meas uring ▁about ▁. ▁At ▁some ▁unknown ▁point ▁in ▁the ▁post - med ieval ▁period , ▁a ▁fire ▁g utt ed ▁the ▁keep , ▁leaving ▁it ▁in ▁its ▁present ▁state ▁without ▁flo ors ▁or ▁a ▁roof . ▁On ▁the ▁second ▁floor , ▁there ▁are ▁open ings ▁in ▁the ▁cross ▁wall , ▁broken ▁by ▁a ▁series ▁of ▁Roman es que ▁columns ▁between ▁round - head ed ▁arch es . ▁The ▁cross ▁wall ▁carried ▁a ▁well ▁sh aft , ▁with ▁a ▁well - head ▁at ▁each ▁floor . ▁The ▁third ▁floor ▁had ▁a ▁second ▁chap el ▁and ▁access ▁to ▁the ▁roof , ▁and ▁may ▁have ▁held ▁additional ▁accommod ation . ▁ ▁The ▁current ▁entrance ▁in ▁the ▁north - east ▁occup ies ▁the ▁approximate ▁location ▁of ▁the ▁main ▁gate house ▁constructed ▁by ▁G und ulf ▁and ▁then ▁re built ▁during ▁ 1 2 4 9 – 1 2 5 0 . ▁It ▁was ▁pulled ▁down ▁in ▁the ▁ 1 8 7 0 s ▁when ▁the ▁en closure ▁was ▁converted ▁into ▁a ▁municipal ▁garden . ▁An ▁eng ra ving ▁from ▁ 1 7 3 5 ▁by ▁the ▁Buck ▁brothers ▁gives ▁some ▁indic ation ▁of ▁the ▁gate house ' s ▁form : ▁the ▁gate ▁was ▁an ▁arch way ▁between ▁two ▁to wers ▁project ing ▁from ▁the ▁cur tain ▁wall . ▁It ▁was