▁ ▁Family ▁Father , ▁Ivan ▁Martin ov ich ▁Me zh la uk ▁( John ▁Me ž lau ks ), ▁Lat v ian ; ▁mother , ▁Rosa ▁Sch iller , ▁German . ▁W ife , ▁Char na ▁Mark ov na ▁Me zh la uk ▁( Ma ers - M ikh ail ova ) ▁( 1 9 0 2 – 1 9 4 1 ), ▁was ▁arrested ▁following ▁the ▁arrest ▁of ▁her ▁husband ▁in ▁ 1 9 3 7 ▁and ▁executed ▁in ▁ 1 9 4 1 . ▁Young er ▁brother , ▁ ▁( 1 8 9 5 – 1 9 1 8 ), ▁was ▁a ▁Comm iss ar ▁of ▁Jur is pr ud ence ▁in ▁Kaz an ; ▁he ▁was ▁killed ▁by ▁the ▁White ▁Army ▁during ▁the ▁Russian ▁Civil ▁War . ▁The ▁older ▁brother , ▁Ivan ▁Me zh la uk ▁( 1 8 9 1 – 1 9 3 8 ), ▁also ▁a ▁Soviet ▁government ▁official , ▁was ▁arrested ▁on ▁December ▁ 3 , ▁ 1 9 3 7 , ▁and ▁executed ▁on ▁April ▁ 2 5 , ▁ 1 9 3 8 . ▁Another ▁brother , ▁Val entin ▁Me zh la uk , ▁committed ▁suic ide ▁in ▁ 1 9 3 8 . ▁The ▁young est ▁brother , ▁Corn el ius ▁Me zh la uk ▁( К ор не лий ▁Ме ж ла ук ) ▁( 1 9 0 5 – 1 9 5 2 ), ▁in ▁ 1 9 3 8 ▁officially ▁den ounced ▁his ▁older ▁brothers ▁and ▁surv ived ▁as ▁a