However , no sound information has surfaced to corroborate these claims .
According to some sources , Alexandra Petrovna retaliated against her husband 's infidelity by taking a lover and , in 1868 , gave birth to an illegitimate son .
No sound information has surfaced to corroborate these claims .
According to some sources , Alexandra Petrovna retaliated against her husband 's infidelity by taking a lover and , in 1868 , gave birth to an illegitimate son .