King of the Romans

Richard of Cornwall was only two years younger than his brother Henry, who became King of England. He rebelled against Henry a few times, using his wealth from Cornwall and Poitou to try to become king. When he was married to Isabel Marshal, a wealthy widow, he had even more money and power.After Isabel's death, Richard married Sanchia of Provence, sister of Henry's wife, Eleanor. Eleanor was married to a king. Her sister Margaret was married to a king, Louis IX of race. Their sister Beatrice was married to a king, Charles of Sicily.The Kingdom of Sicily had been offered to Richard by Pope Innocent IV, but Richard knew that taking it from Manfred would be difficult and too expensive, so he declined. Then, in 1257, Richard's golden opportunity to become king came along, and it was thanks to his new wife, Sanchia.Germany was lacking a king. William of Holland (whose election was contested, prompting him to be called an "anti-king") died after a battle when he got stuck in the ice trying…