Union 1707, which came into effect on 1 May 1707, the last Stuart monarch, Anne, became Queen of Great Britain and Ireland. <div style="overflow:auto"> Family tree Round provided a family tree to embody his essential findings, which is adapted below. Origin Alan fitz Flaad William FitzAlan, Lord of Oswestry William Fitz Alan, 1st Lord of Oswestry and Clun William Fitz Alan, 2nd Lord of Oswestry and Clun John Fitzalan, Lord of Oswestry John FitzAlan, 6th Earl of Arundel House of FitzAlan Jordan fitz Alan, Seneschal of Dol Walter fitz Alan, 1st High Steward of Scotland Alan fitz Walter, 2nd High Steward of Scotland Walter Stewart, 3rd High Steward of Scotland Alexander Stewart, 4th High Steward of Scotland James Stewart, 5th High Steward of Scotland Walter Stewart, 6th High Steward of Scotland Robert II of Scotland John Stewart of Ralston John Stewart of Bonkyll Alexander Stewart of Bonkyll Earls of Angus (extinct 1361) Alan Stewart of Dreghorn Stewart of Darnley Earls of Lennox Stewart of Garlies Earls of Galloway Stewart of Burray Stewart of Physgill (Phisgal) Stewart of Minto Lords Blantyre Stewart of Tongrie Stewart of Barclye Walter Stewart of Garlies and Dalswinton John Stewart of Dalswinton Walter Stewart of Garlies and Dalswinton James Stewart of Pearston Stewart of Pearston Stewart of Lorn Clan Stewart of Appin Earls of Atholl Earls of Buchan Earls of Traquair (illegitimate) John Stewart of Daldon Robert Stewart of Daldowie Walter Bailloch Earls of Menteith Robert Stewart, Lord of Darnley Simon fitz Alan Clan Boyd House of Stewart Robert II of Scotland Robert III of Scotland David Stewart, Duke of Rothesay James I of Scotland Alexander Stewart, Duke of Rothesay James II of Scotland James III of Scotland James IV of Scotland James, Duke of Rothesay Arthur Stewart, Duke of Rothesay James V of Scotland James, Duke of Rothesay Arthur, Duke of Albany Mary, Queen of Scots Alexander Stewart, Duke of Ross James Stewart, Duke of Ross John Stewart, Earl of Mar Alexander Stewart, Duke of Albany Alexander Stewart, Bishop of Moray John Stewart, Duke of Albany David Stewart, Earl of Moray John Stewart, Earl of Mar Sir John Stewart (illegitimate) Stewart of Ballechin Walter, Lord of Fife Robert Stewart, Duke of Albany Murdoch Stewart, Duke of Albany Robert Stewart Walter Stewart Lords Avandale Lords Stuart of Ochiltree Barons Castle Stewart Earls Castle Stewart Alasdair Stewart James Mor Stewart James "Beag" Stewart (illegitimate) Stewart of Balquhidder