Lee Big Poppa Najjar, 68, Dies; Daughters Tribute

's ex-boyfriend Lee Najjar - who was referred to as 'Big Poppa' on Bravo's The - has died at the age of 68.

The Atlanta real estate mogul's daughter Katelin Najjar confirmed the news in an Instagram post, revealing he passed away on Saturday, April 18.

Najjar's cause of death is currently unknown, but TMZ confirmed his passing with the Miami-Dade Medical Examiner on Wednesday. 

While he never appeared on-camera, Najjar played a huge role in Zolciak's early RHOA storyline as her alleged 'sugar daddy.'  

Zolciak previously called Najjar the 'love of [her] life' despite their romance coming to an end in 2009.