The Custom of Ulster gave tenants of this province

Provinces of Ireland

Ireland has historically been divided into four provinces: Leinster, Ulster, Munster and Connacht. The Irish word for this territorial division, cúige, literally meaning "fifth part", indicates that there were once five; the fifth province, Meath, was incorporated into Leinster, with parts going to...

 of Ireland

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

 a reasonable expectation of security of tenure

Tenure

Tenure commonly refers to life tenure in a job and specifically to a senior academic's contractual right not to have his or her position terminated without just cause.-19th century:...

 so long as they paid their rent, and also allowed them to sell the right to occupy their holding to another tenant acceptable to the landlord. It was believed to be one reason for the greater prosperity of Ulster

Ulster

Ulster is one of the four provinces of Ireland, located in the north of the island. In ancient Ireland, it was one of the fifths ruled by a "king of over-kings" . Following the Norman invasion of Ireland, the ancient kingdoms were shired into a number of counties for administrative and judicial...

 farms, but modern research does not support this. The Custom of Ulster was given the force of law under the 1870 Irish Land Act.