The Brehon’s Chair (Irish: Cathaoir an Bhreithimh, also known as Taylor’s Grange) is the remains of a Portal Tomb located in the townland of Taylorsgrange, Rathfarnham near Tallaght, just south of the M50 in County Dublin, Ireland. The “Brehons Chair Road” is named after this monument, which is a national heritage site. Portal Tombs are megalithic structures erected between 4000 and 2500 BC during the Neolithic period in Ireland and Great Britain. They are characterized by two equally tall, upright stones with a doorstone in between, forming the front of a chamber covered partially by a massive capstone.