Nikolai was the father of Linda von Hagen. He was born in 1850, the son of Austrian and Serbian counts in Novi Sad. His father didn't like him and spanked him intensely, leading him to having a sore back.
He had an arranged marriage with old money guard Anya Shostakovich of Belarus, leading to Linda's birth. They then divorced so Niki's daughter had to be raised by governesses as a child and later youth. She later left him due to abuse, so he died an unhappy man in 1812.