This is Xandra Brood, his wife. They married in 1958. 
Her full name is: Alexandra Brood-Jansen. She works as a Stylist and still Lives in Amsterdam after Herman died. 
She was mostely raised by her mom and she lived in Ulvenhout when she was younger. When she was a little older she moved to Amsterdam and workd at a disco. Her Uncle was the company director. 

This is Lola Pop Brood, Born in 1985 in Amsterdam. 
She's working as a designer by The Sting. She made a clothing line about her father Brood. 
She is the doughter of Herman and Xandra and is named after a song of the Britisch rockband The Kinks. 
She posed naked for the PlayBoy in April 2016. She is just like her father a painter and as I said before, she is a designer. 

His 2nd doughter is Holly Mae Brood. She is born in 1994 in Amsterdam. 

She sang in a dutch group 'Kinderen voor Kinderen' translated: 'Children for Children' (2006) She also sang for 'Kinderen zingen met sterren' translated: 'Children sing with Stars' (2008) 
Holly also got a role in the musical 'Ciske de Rat' translated: 'Ciske rat'.
She dances professional since she was 6 years old. Now she follows a college dance training at Lucia Marthas. For Herman's 65th birthday she recorded 'When I Get Home' 'together' with him. 
She is the doughter of Xandra but not the doughter of Herman, but she defenetly concidered Herman as her true father.. Lola is her half sister
She also won the 7th place at Holland's next top model in 2014.

 

Marcel Buissink, He is the only son of Herman, and was He was born by the brief relationship between his father and Tekie Buissink. 
He often went to performances of his father since he was 10. He got the music talents of his father en started a rock band named 'Kraaak'. 

Brenda van de Biezen is adopted. There isn't much about her but she has a son, Jay and she works as a teacher Englisch. 

 

I coudn't found anything about the parents or the siblings of herman. His mom did something with close for her living and his dad worked with machine banking. His father cheated on his mom, when that came out, he had to leave the house. 
The mom didn't believe, his 2 sister, one brother and him could deside for themselves how to explain life