Obi was born in Glostrup, a town located within Copenhagen in Denmark, to a Danish mother and Nigerian father.[2]
Having started his career in Denmark with local side Kjøbenhavns Boldklub, Obi moved to England as a child, going on to join the academy of Arsenal at the age of fourteen
Since you made me google it, I’ll save others:
From Wikipedia:
Obi was born in Glostrup, a town located within Copenhagen in Denmark, to a Danish mother and Nigerian father.[2]
Having started his career in Denmark with local side Kjøbenhavns Boldklub, Obi moved to England as a child, going on to join the academy of Arsenal at the age of fourteen