Isabella of England
Isabella of was born in 1214. She died whilst giving birth at the age of 27 on December 1st, 1241. She was buried at Cathedral of Andria.
Margaret of Sicily (1237–1270), (Margarethe von Hohenstaufen), Imperial Princess and Margravine of Meissen, was the eldest -according to some sources [1] she was born in 1241 and, in consequence, was the youngest and not the oldest- legitimate daughter of Frederick II, Holy Roman Emperor, King of Sicily, by his third wife, Isabella of England.