[2] According to Richard Vaughan of Nannau (c. 1650), Sele sided against Glyndŵr, was captured and an attempt to free him was defeated in a battle at Beddau’r Gwŷr.

Fearing repercussions from the abbot, Glyndŵr hid Sele's body in a hollow in an ancient oak tree.

[3] A cousin of Sele, Gruffydd ap Gwyn of Ardudwy heard of the burning of the estate and set out to rescue his kinsman.

In Ellis' version Glyndŵr, suspicious of Sele, survived by wearing a coat of mail beneath his clothes.

[5] John Humffreys Parry (1786–1825) relates another account in which the meeting came about by accident while Glyndŵr was hunting on Sele's land and a confrontation turned violent.

[10] Thomas Pennant inspected the oak in 1778 and noted that it was 27 feet 6 inches (8.38 m) in girth but that it was in an advanced state of decay.

[4] Sir Richard Colt Hoare was present at the time it fell and had completed a drawing of the tree that very morning.

He further notes that the oak was also known as Ceubren yr Ellyll ("The Hollow Tree of the Ghost") and was regarded as haunted, with people afraid to approach it at night.