Table:
text: Windsor (UK Parliament constituency)
MPs 1707–1868
MPs 1707–1868
Year_ First_member First_party Second_member Second_party
1835 Sir John Elley Conservative John Ramsbottom, junior later John Ramsbottom Whig
1837 Robert Gordon Whig John Ramsbottom, junior later John Ramsbottom Whig
1841 Ralph Neville Conservative John Ramsbottom, junior later John Ramsbottom Whig
1845 Ralph Neville Conservative George Alexander Reid Conservative
1847 Lord John Hay Whig George Alexander Reid Conservative
1850 John Hatchell Whig George Alexander Reid Conservative
1852 John Hatchell Whig Charles William Grenfell Whig
1852 Lord Charles Wellesley Conservative Charles William Grenfell Whig
1855 Samson Ricardo Whig Charles William Grenfell Whig
1857 William Vansittart Conservative Charles William Grenfell Whig
1859 William Vansittart Conservative George William Hope Conservative
1863 William Vansittart Conservative Richard Vyse Conservative

Question: What was the first party for Lord John Hay in Windsor (constituency of the British Parliament) before 1857?