▁at ▁the ▁ 1 9 7 6 ▁Summer ▁Olympics ▁Category : S ports people ▁from ▁Den ver ▁Category : Pan ▁American ▁Games ▁medal ists ▁in ▁g ymn ast ics ▁Category : Pan ▁American ▁Games ▁gold ▁medal ists ▁for ▁the ▁United ▁States ▁Category : Pan ▁American ▁Games ▁silver ▁medal ists ▁for ▁the ▁United ▁States ▁Category : G ymn asts ▁at ▁the ▁ 1 9 7 5 ▁Pan ▁American ▁Games <0x0A> </s> ▁Ż er oc in ▁ ▁is ▁a ▁village ▁in ▁the ▁administrative ▁district ▁of ▁G mina ▁D rel ów , ▁within ▁B iała ▁Pod l aska ▁County , ▁Lub lin ▁Vo iv odes hip , ▁in ▁eastern ▁Poland . ▁It ▁lies ▁approximately ▁ ▁north - east ▁of ▁D rel ów , ▁ ▁south - west ▁of ▁B iała ▁Pod l aska , ▁and ▁ ▁north ▁of ▁the ▁regional ▁capital ▁Lub lin . ▁ ▁From ▁ 1 9 7 5 – 1 9 9 8 ▁Ż er oc in ▁was ▁in ▁the ▁now ▁def unct ▁B iała ▁Pod l aska ▁Vo iv odes hip . ▁ ▁The ▁village ▁has ▁a ▁population ▁of ▁ 5 8 0 . ▁ ▁References ▁ ▁Category : V ill ages ▁in ▁B iała ▁Pod l aska ▁County ▁Category : K holm ▁Governor ate ▁Category : L ub lin ▁Vo iv odes hip ▁( 1 9 1 9 – 1 9 3 9 ) <0x0A> </s> ▁Math ilde - Marie ▁Georg ina ▁É lis abeth ▁de ▁P ey re br une ▁( also ▁known ▁as , ▁George ▁de ▁P ey re