Saoirse Kennedy Hill’s unique first name is a nod to her family’s Irish heritage.

The 22-year-old Boston College student, who died of an apparent drug overdose at the Kennedy family’s compound in Cape Cod, was the only daughter of Courtney Kennedy Hill and Irishman Paul Hill.

Pronounced “sear-sha,” Saoirse means freedom and liberty in the native Irish language.

Paul is one of the Guildford Four — a group of men who were wrongfully convicted in the Irish Republican Army’s bombing of two pubs in England in 1974.

He spent 15 years behind bars before his conviction was overturned in 1989. He and Courtney married four years later before splitting in 2006.

The couple lived in Ireland from 2002 and 2006 and also spent time raising Saoirse there, according to the Irish Times.