Matilda of England, Duchess of Saxony – Wikipedia
A couple of Medieval deaths of note…
1189 – Matilda of England, Duchess of Saxony (b. 1156) https://en.wikipedia.org/wiki/Matilda_of_England,_Duchess_of_Saxony
1497 – James Tuchet, 7th Baron Audley (b. c. 1463) https://en.wikipedia.org/wiki/James_Tuchet,_7th_Baron_Audley