Multiple Tables DataGridView Combobox question

Question

Hello!
I have 2 tables, one for category and one for people.
I need to put the data in a DataGridView but with a twist.
In people table there should be a Combobox with list of categories from the category table.
When I save data in DataGridView the data from Combobox shuould save in people table.
Is this possible? How? I have not found any help on the internet about this.
Thanks.