The "Rise Up" singer's former manager, 61, was engaged to 48-year-old Avery, currently a realtor, for a year and a half.
In a statement to Us, Knowles said that daughters, Beyonce, 31, and Solange, 27, did not attend the wedding. "Unfortunately, Beyonce and Solange had previous engagements which made it impossible for them to attend," he explained.
Knowles, head of Music World Entertainment, stopped managing his daughter's career in March 2011. In a statement to Us Weekly at the time, Jay-Z's wife, said there was no hard feelings based on her decision.
"I've only parted ways with my father on a business level," Beyonce said. "He is my father for life and I love my dad dearly. I am grateful for everything he has taught me. I grew up watching both he and my mother [Tina Knowles] manage and own their own businesses. They were hard-working entrepreneurs and I will continue to follow in their footsteps."
Knowles' divorced Beyonce and Solange's mother, Tina, in 2011 after 31 years of marriage.