The British TV sitcom "Motherland" was written by a team including Sharon Horgan, Holly Walsh, Graham Linehan, and Helen Serafinowicz. They co-created and co-wrote the series, which premiered on BBC Two in 2017 and has won a BAFTA for Best Scripted Comedy. Helen Serafinowicz is specifically noted as a co-creator and co-writer, and the writing process involved collaborative development among the four writers. Sharon Horgan is also prominently recognized as a co-creator and writer of the show.
There is also a song titled "Motherland," written by Natalie Merchant, but it is unrelated to the TV series.
If the interest is in the TV series "Motherland," the writing credits belong collectively to Sharon Horgan, Holly Walsh, Graham Linehan, and Helen Serafinowicz.