Clans with the surname "Ireland"

My maiden name is Ireland and I am serching for the clan we belong to, crest, plaid, tartans, etc.

any info? It is hard to narrow down because everything referrs to the country of Ireland, not the last name.

The surname Ireland is derived from a nickname as far as I know. Originally it was used in England to describe someone from, you've guessed it, Ireland. In Ireland of course we named foreigners English and Welsh (or Walsh).

Stephen Ireland plays soccer for Manchester City and Ireland.