Johnny Depp's mother died two days before his wife Amber Heard filed for divorce.

Johnny Depp and Amber Heard

Johnny Depp and Amber Heard

Betty Sue Palmer, 81, passed away on Friday (20.05.16) in Los Angeles after a long illness, according to Entertainment Tonight and it was previously revealed that Johnny and Amber wed during a civil ceremony at their home in Los Angeles before their 2015 marriage in the Bahamas as Betty was too frail to travel at the time.

A source previously said: "She is too frail to travel, so he and Amber got married in LA for her. Johnny convinced Amber to have a small ceremony at their LA home."

Johnny was so close to his mother that he had a tattoo of her name inside a heart on his left arm and bought her a $1 million 43-acre Kentucky farm in 1995.

Meanwhile, Johnny often spoke about his mother in interviews and her advice to him on how to stand up to bullies.

He said: "She'd come from nothing but hillbillies and she said, 'OK, here's the deal. Next time anybody puts their hands on you, pick up a brick and lay them out'. And I've taken that advice ever since."

And he also opened up about her difficult upbringing, saying: "My mother was raised in a shack, in the wilds of Appalachia, where the toilet was an outhouse. She used to say she did the same things that her mom did - and her mom certainly didn't know any better. With my kids, they're told 75 times a day that they're loved. One thing I know is they feel loved and secure and happy and needed and necessary and a part of something."