The History of Ireland (Books I-II) by Geoffry Keating
ftp://ftp.ucc.ie/pub/celt/texts/T100054.txt
This book has a reference to:
"It was in the time of Tighearnmhas that clothes were first dyed purple, blue, and green in Ireland. It was also in his time that embroidery, fringes, and filigree were first put on mantles in Ireland. It was he in the same way that introduced into Ireland the custom of having but one colour in the dress of a slave, two colours in the dress of a peasant, three in the dress of a soldier or young lord, four in the dress of a brughaidh, five in the dress of a district chief, six in the dress of an ollamh and in the dress of a king or queen."
"Thereupon Macha undid the gold bodkin that was in the mantle on her breast, and with it measured the site of the fort which the sons of Diothorba were obliged to build."
"Another reason, too, that Aodh had for bainishing the filés was that they went to demand a gold bodkin that was in his mantle. Now this was a bodkin that each king left as an heirloom to each succeeding king, and it was their inordinate demand of this bodkin that incited Aodh to drive them out, so that they were banished to Dal Riada of Ulster."
"...and thereupon as the king of Leinster himself put his shoulder under the mast assigned to the Ui Faolain, wearing a satin tunic which Brian had given him sometime before, and which had gold borders to it and a silver clasp."
