Presiden Biden is of English and Irish descent. I could not find any royal connection, but then the information I had only took me back to 18th century. The Paternal line is the English and his maternal line is Irish.
The Orange Man is of German and Scottish descent. His patneral Grandfather Friedrich Trump came from Kallstadt in Southern Germany. His maternal line is Scottish (something we Scots would rather forget). His mother Mary Anne MacLeod Trump, was born in Tong, a small village on the Isle of Lewis. Mary grew up in Scottish Gaelic speaking household. English was her second language which she learned to speak at school. They were a family of Crofters and belonged to the Clan Macleod. Tracing ancestry of people in the Northern Isles of Scotland is difficult as surnames were commonly not used on the islands and official records only go back to the early decades of the 19th Century.