A woman who killed her two children while suffering post-natal depression has told a court she was "a good mum".
Felicia Boots (35) pleaded not to be judged harshly for killing Mason (nine weeks) and Lily (14 months).
They were found on the floor of a walk-in wardrobe by Boots's investment banker husband Jeff at their home in Wandsworth, London, in May.
Boots wept at the Old Bailey court as she pleaded guilty to manslaughter on the grounds of diminished responsibility.
She was ordered to be detained at a psychiatric unit.
Boots, who wore a black suit and white blouse, sent a note to the court which was read by her counsel Kate Bex.
It said: "May 9, 2012, is a day I will be eternally sorry for. It should never have happened.
"Part of me will always be missing. I am a good mum and I never meant any of this to happen. I am truly sorry."
The court was told the children had been asphyxiated and that Boots suffered postnatal depression, but appeared to be getting better.
She was prescribed antidepressants but had not been taking them after becoming convinced the babies would be taken away because of the effects of the drugs on her breast milk.
Edward Brown QC, prosecuting, said Mr Boots was supporting his wife.
Mr Brown said: "She told him she had killed the children at 2pm. She also said she had tried to kill herself."