Viceroy
The Kingdom of Ireland was governed by an executive under the control of a Lord Deputy or viceroy. The post was held by senior nobles such as Thomas Radcliffe. From 1688 the title was usually Lord Lieutenant. In the absence of a Lord Deputy, lords justices ruled. While some Irishmen held the post, most of the lords deputy were English noblemen. While the viceroy controlled the Irish administration as the monarch's representative, in the eighteenth century the political post of Chief Secretary for Ireland became increasingly powerful.
The Kingdom of Ireland was legislated by the bicameral Parliament of Ireland, made up of the House of Lords and the House of Commons. The powers of the Irish parliament were circumscribed by a series of restrictive laws, mainly Poynings' Law of 1494.
Read more about this topic: Kingdom Of Ireland