Veronica Crook, who has been looking after the Rees-Mogg family for more than 50 years, spoke openly after the family was attacked.
The 76-year-old was quick to protect the family when confronted by left-wing demonstrators in the class struggle.
Ian Bone, leader of the anarchist group, confronted Jacob Rees-Mogg's children.
He told them that her father was a "terrible person" and that Miss Crook was "exploited" by the family.
Miss Crook was first hired by Jacob Rees-Mogg's father William, who was formerly a newspaper editor.
She is invited by the family to a dinner at The Ritz to celebrate her 53rd year of working with the family.
On Sunday, she told the Mail that it was "nonsense" that the Rees-Mogg family exploited her.
She added, "I'm very happy with terms and conditions."
The actions of the anarchists were widely condemned throughout the political spectrum.
Miss Crook said, "It's a lot more intrusive than when I first worked for the family.
"Jacob brings his kids to political things, but that was not a political event.
"It was on the doorstep of the family and that's totally different.
"If this had been a formal political function, they could have said it was a question of freedom of speech and so on, but it was not."
The nanny of the family told the Mail on Sunday: "Jacob likes talking to people from all walks of life and he is interested in their lives."
Their comments come after Jacob Rees-Mogg and his wife Helena have denied that they have a fortune of 150 million pounds.
Mr. Rees-Mogg was recently implicated in speculation that he could run for the leadership of the Conservative Party.
Miss Crook said he would make an "excellent prime minister."
She seemed very proud of the boy she helped with by saying that she instilled "honesty, kindness, and consideration for other people."