▁as ▁far ▁back ▁as ▁ 1 2 3 6 . ▁Hart ley ▁was ▁once ▁an ▁area ▁stretch ing ▁from ▁the ▁B rier ▁D ene ▁Burn ▁( in ▁present - day ▁Wh itle y ▁Bay ) ▁to ▁the ▁Se aton ▁Burn , ▁which ▁belonged ▁to ▁T yn em outh ▁Pri ory . ▁ ▁In ▁ 1 1 0 0 ▁the ▁land ▁became ▁the ▁property ▁of ▁the ▁Hub ert ▁de ▁L aval , ▁nep hew ▁by ▁marriage ▁to ▁William ▁the ▁Con quer or . ▁The ▁de ▁Lav als ▁( or ▁Del av als ) ▁settled ▁about ▁half ▁a ▁mile ▁in land ▁from ▁Hart ley ▁P ans ▁and ▁their ▁place ▁of ▁residence ▁became ▁Se aton ▁Del aval , ▁the ▁name ▁' Se aton ' ▁being ▁derived ▁from ▁Old ▁English ▁meaning ▁a ▁settlement ▁( ton ) ▁by ▁the ▁sea . ▁ ▁Har bour ▁improvements ▁ ▁Prior ▁to ▁ 1 5 5 0 ▁the ▁salt ▁produced ▁at ▁Hart ley ▁P ans ▁had ▁been ▁transport ed ▁to ▁B ly th ▁to ▁be ▁export ed , ▁but ▁after ▁this ▁date ▁it ▁was ▁sh ipped ▁directly ▁from ▁the ▁small , ▁natural ▁har bour . ▁The ▁village ▁hence for th ▁became ▁known ▁as ▁Hart ley ▁H aven , ▁and ▁was ▁used ▁for ▁the ▁export ▁of ▁coal ▁as ▁well ▁as ▁salt . ▁However ▁the ▁har bour ▁was ▁pr one ▁to ▁sil ting , ▁which ▁limited ▁access ▁by ▁ships . ▁This ▁problem ▁was ▁tack led ▁by ▁Sir ▁Ralph ▁Del aval ▁( 1 6 2 2 – 1 6 9 1 ), ▁who ▁had ▁a