▁Category : Pe ople ▁from ▁Batt ical oa ▁Category : S ri ▁L ank an ▁T amil ▁polit icians ▁Category : T amil ▁National ▁Alliance ▁polit icians ▁Category : Year ▁of ▁birth ▁missing ▁( l iving ▁people ) <0x0A> </s> ▁Ferdinand ▁Pra eg er ▁( 2 2 ▁January ▁ 1 8 1 5 ▁– ▁ 2 ▁September ▁ 1 8 9 1 ) ▁( aka ▁Ferdinand ▁Christian ▁Wilhelm ▁Pra eg er ) ▁was ▁a ▁composer , ▁music ▁teacher , ▁pian ist ▁and ▁writer . ▁He ▁is ▁now ▁best ▁known ▁for ▁his ▁controvers ial ▁bi ography ▁of ▁Richard ▁Wagner , ▁Wagner ▁As ▁I ▁K new ▁Him , ▁published ▁in ▁ 1 8 9 2 ▁after ▁Pra eg er ' s ▁death . ▁ ▁Life ▁Pra eg er ▁was ▁born ▁in ▁Leipzig , ▁to ▁Jewish ▁parents , ▁the ▁Dutch - J ew ish ▁viol in ist , ▁composer ▁and ▁conduct or ▁Heinrich ▁( H ij man ▁Cha im ▁Ar on ) ▁Alo ys ▁Pra eg er ▁( Am sterdam ▁ 1 7 8 3 ▁– ▁Mag de burg ▁ 1 8 5 4 ) ▁and ▁his ▁English - J ew ish ▁wife ▁Elizabeth ▁( Wil helm ina ), ▁n ée ▁Davis ▁or ▁Dav ison ▁( b . ▁ 1 7 8 8 ). ▁Heinrich ▁Pra eg er ▁was ▁a ▁director ▁of ▁opera ▁in ▁Leipzig ▁until ▁ 1 8 2 8 , ▁and ▁later ▁at ▁Han over ▁and ▁Mag de burg . ▁ ▁Pra eg er ▁studied ▁the ▁c ello ▁as ▁a ▁child ▁but ▁on ▁the