The same year , her husband began an affair with a ballerina forming a second family with his mistress .
Deeply religious and very involved in charity work , Alexandra founded a training institute for nurses in St Petersburg in 1865 .
The same year , Alexandra 's husband began an affair with a ballerina forming a second family with his mistress .
Deeply religious and very involved in charity work , Alexandra founded a training institute for nurses in St Petersburg in 1865 .