Retained Rights of Residence
You can apply for an EEA family permit if you previously had a right to reside in the UK as a family member of an EEA national.
You could have a retained right of residence if your marriage with your EEA-national partner has ended or your partner has died. You could also have that right if you are a child of an EEA-national who has died or left the UK or you are a parent of a child who has a retained right of residence
You must also meet other requirements to be eligible for a retained right of residence.