6 7 – 1 8 2 1 ): ▁Tw enty - n ine ▁complete ▁string ▁quart ets : ▁Three ▁quart ets ▁each ▁in ▁O pp . ▁ 1 , ▁ 2 , ▁ 5 , ▁ 7 , ▁ 1 6 , ▁ 3 0 , ▁ 5 3 , ▁ 5 9 ▁and ▁ 7 6 ; ▁a ▁single ▁quart et , ▁Op . ▁ 4 0 , ▁and ▁a ▁qu atu or ▁brilliant , ▁Op . ▁ 1 1 . ▁He ▁also ▁wrote ▁three ▁rond os ▁for ▁string ▁quart et , ▁Op . ▁ 3 4 . ▁ ▁Born ▁in ▁the ▁ 1 7 7 0 s ▁Ludwig ▁van ▁Be eth oven ▁( 1 7 7 0 – 1 8 2 7 ): ▁Six teen ▁quart ets ▁widely ▁regarded ▁as ▁among ▁the ▁fin est ▁quart ets ▁by ▁any ▁composer . ▁The ▁Gro ße ▁F uge ▁was ▁originally ▁composed ▁as ▁the ▁last ▁movement ▁of ▁Op . ▁ 1 3 0 , ▁but ▁was ▁subsequently ▁published ▁as ▁a ▁separate ▁work . ▁Peter ▁Hä ns el ▁( 1 7 7 0 – 1 8 3 1 ): ▁At ▁least ▁ten ▁quart ets . ▁Anton ▁Reich a ▁( 1 7 7 0 – 1 8 3 6 ): ▁At ▁least ▁thirty - se ven ▁string ▁quart ets ▁( 1 4 ▁of ▁them ▁newly ▁discovered ), ▁of ▁which ▁the ▁eight ▁Vienna ▁quart ets ▁( 1 8 0 1 – 0 6 ) ▁are ▁the ▁most ▁important . ▁Though ▁largely ▁ignored ▁since ▁Reich a ' s ▁lifetime