▁Bridge , ▁near ▁Glasgow ▁C athedral , ▁by ▁Hugh ▁and ▁Robert ▁T enn ent , ▁although ▁bre wing ▁had ▁taken ▁place ▁at ▁the ▁same ▁site ▁on ▁the ▁banks ▁of ▁the ▁Mol end inar ▁Burn ▁by ▁their ▁ancest or , ▁Robert ▁T enn ent , ▁since ▁ 1 5 5 6 , ▁making ▁it ▁the ▁oldest ▁continuous ▁commercial ▁concern ▁in ▁Glasgow . ▁▁ ▁Hugh ▁T enn ent ' s ▁sons , ▁John ▁and ▁Robert , ▁continued ▁the ▁family ▁business , ▁trad ing ▁as ▁J ▁& ▁R ▁T enn ent ▁from ▁ 1 7 6 9 . ▁The ▁business ▁expanded ▁in ▁the ▁ 1 7 9 0 s ▁when ▁the ▁T enn ent ▁family ▁purchased ▁the ▁neighbour ing ▁bre wer y ▁of ▁William ▁Mc Le h ose , ▁and ▁renamed ▁the ▁ ▁site ▁Well park ▁Bre wer y . ▁ ▁The ▁firm ▁originally ▁bre wed ▁st out ▁and ▁strong ▁export ▁al es . ▁By ▁the ▁mid - 1 9 th ▁century ▁J & R ▁T enn ent ▁was ▁the ▁world ' s ▁largest ▁bott led ▁be er ▁exp orter . ▁Robert ▁T enn ent ▁died ▁in ▁ 1 8 2 6 ▁and ▁John ▁T enn ent ▁in ▁ 1 8 2 7 . ▁Hugh ▁T enn ent ▁( the ▁el dest ▁son ▁of ▁Robert ) ▁then ▁assumed ▁control ▁of ▁the ▁business . ▁Hugh ▁T enn ent ▁retired ▁in ▁ 1 8 5 5 ▁with ▁his ▁fifth ▁son , ▁Charles ▁T enn ent , ▁taking ▁over , ▁but ▁he ▁died ▁in ▁ 1 8 6 4