Ashley Tomlin, 32, passed away after suffering from a ruptured heart artery and could not be saved by paramedics.
Ashley's young son Jak also passed away from a ruptured heart artery.
Medical examiners are now investigating if the two suffered from a shared hereditary condition.
Ashley's father Keith, who also lost his own father James just a day before his grandson, claims his daughter 'died of a broken heart.'
Jak tragically passed away on November 6, and James just days before.
The family are now reeling after a third death - Ashley's.
Keith explained, 'Jill heard a noise and when she went in, she found Ashley having a seizure. The paramedics couldn’t bring her round.
'They think it was a massive heart attack, but I have my first meeting with the coroner and he told me he wishes they could put ‘broken heart’ on the death certificate, because that is basically what it was.'
Our thoughts are with the Tomlin family during this incredibly difficult time.