A father killed his baby daughter by shaking her with "excessive force", a court has heard.
Scarlett Stokes-Craig died of a head injury at London's Great Ormond Street Hospital 10 days after she was brought into hospital.
Her father Adam Stokes, 33, from Runfold, Luton, is on trial for her manslaughter at Luton Crown Court.
Mr Stokes denies causing the injuries which led to the nine-week-old's death in January 2013.
The court heard Scarlett stopped breathing and went blue on 13 January, 2013, but was sent home from an urgent GP clinic at Luton and Dunstable Hospital after sleeping normally.
An ambulance was called the next day and found her "pale, unresponsive, blue, floppy, warm to the touch and in cardiac arrest", the court was told.
Ten days after she was brought into hospital for the second time she died. A post-mortem examination found she died of bleeding in the brain and around both eyes.
Sally Howes, prosecuting, said these injuries were caused by shaking.
The trial continues.