Feast of St. Tassach, April 14

I asked earlier if there were any Irish saints who did NOT know St. Patrick personally. A second question...are there any Irish saints who don't have alternate names?

From Catholic Online:

"Bishop, also known as Asicus. One of the first disciples of St. Patrick, he was a gifted artisan, creating for St. Patrick croziers, patens, and chalices. He was later appointed the first bishop of Rahoip, Ireland, and gave Patrick the last rites."