Ulster (the one "in bondage" in "four green fields")
Munster
Leinster
Connaught

reminds me of a song I learnt in primary school (by Dorothy Parkes I think.....)

there are 32 counties within this green isle
and good soil and bad soil for many's a mile
4 provinces only, now ponder upon it
Ulster, Munster, Leinster and Connaught

slainte

alison