Brielle Biermann has unfollowed her adoptive father Kroy Biermann after he filed for divorce from her mother and The Real Housewives of Atlanta alum Kim Zolciak. Kim and Kroy have been married for 11 years and have four biological children together, all ranging in age from 9 and 11. Along with the divorce, the couple is now embarking on a heated custody battle as both would like sole custody of the children.