orial , ▁and ▁maintained ▁four ▁org ans ▁that ▁had ▁been ▁built ▁by ▁his ▁compat ri ot ▁Jean ▁Bre bos . ▁He ▁held ▁this ▁position ▁until ▁ 1 5 9 9 , ▁when ▁he ▁returned ▁to ▁Paris . ▁Before ▁he ▁left ▁Madrid , ▁the ▁Arch du ke ▁Albert ▁made ▁him ▁a ▁present ▁of ▁a ▁large ▁cla v ich ord ▁to ▁which ▁he ▁had ▁made ▁various ▁improvements . ▁ ▁Paris ▁ ▁Matth ij s ▁Lang hed ul ▁was ▁in ▁demand ▁in ▁Paris ▁to ▁maintain ▁the ▁org ans ▁that ▁he ▁and ▁his ▁father ▁had ▁built ▁or ▁rep a ired . ▁He ▁restored ▁the ▁org ans ▁at ▁Saint - Jean - en - Gr ève ▁and ▁Saint ▁Ben oit , ▁where ▁he ▁replaced ▁his ▁father ' s ▁spring - ch est ▁with ▁a ▁slider - ch est ▁to ▁make ▁repair ▁easier . ▁With ▁an ▁established ▁reputation , ▁he ▁was ▁asked ▁to ▁build ▁or ▁repair ▁org ans ▁for ▁the ▁churches ▁of ▁Sain ts - In noc ents ▁and ▁St ▁Jacques - la - B ouch erie . ▁His ▁most ▁notable ▁organ ▁is ▁the ▁one ▁built ▁between ▁ 1 5 9 9 ▁and ▁ 1 6 0 1 ▁for ▁Saint ▁Ger va is ▁Church . ▁ ▁Many ▁of ▁the ▁original ▁stops ▁are ▁still ▁working . ▁ ▁Some ▁of ▁the ▁pip es ▁are ▁signed ▁" L ang hed ul ▁ 1 6 0 0 ". ▁He ▁made ▁the ▁organ ▁for ▁the ▁Saint - B eno ît - le - B ét ourn é ▁Colleg iate . ▁ ▁When ▁that ▁institution