So far I have discovered three English Kings to which have been distantly related to a Thrale.
Links
[1] http://thrale.com/user/login?destination=comment/reply/332%23comment-form
[2] http://thrale.com/user/register?destination=comment/reply/332%23comment-form
[3] https://en.wikipedia.org/wiki/King_Henry_VII
[4] http://thrale.com/sites/all/libraries/tng/relationship.php%3Fgenerations%3D15%26amp%3BaltprimarypersonID%3D%26amp%3BsavedpersonID%3DI364%26amp%3BsecondpersonID%3DI805%26amp%3Btree%3Dtree01%26amp%3BprimarypersonID%3DI87
[5] https://upload.wikimedia.org/wikipedia/commons/4/4a/Younghenry7.jpg
[6] https://en.wikipedia.org/wiki/Henry_III_of_England
[7] http://thrale.com/sophia_thrale
[8] http://thrale.com/sites/all/libraries/tng/getperson.php%3FpersonID%3DI564%26amp%3Btree%3Dtree01
[9] https://upload.wikimedia.org/wikipedia/commons/b/b3/Henry_III_funeral_head.jpg
[10] https://en.wikipedia.org/wiki/King_Edward_I
[11] https://upload.wikimedia.org/wikipedia/commons/b/b2/Gal_nations_edward_i.jpg
[12] http://thrale.com/category/tags/1741_1821