- Robert de Vere
Birth - about 1230 - , Hedinham, Essex, England - Ingelram de Percy
Birth - about 1230 - , Petworth, NORTHUMBERLAND, England - Edmund de Lacy
Birth - 1230 - Of, , Lincolnshire, England - Niels Juul
- Johann d.Ä. Lüneborg
- Peder Skram
- Gunde Aghissen Wind
- Nicolaus Elersen Krummedige
Birth - about 1230 - Ottenbüttel, Schleswig - Moshe Treves
- Rabbi Benveniste ben Josef HaLevi
Death - about 1230 - Girona, Spanien - Stig Andersen Hvide
Birth - 1230 - Kongsdal, Undløse sogn, Holbæk amt - Garci Melendez de Soto-Mayor
Birth - about 1230 - Of, New Castile, Spain - Enrqiue Fernandez Prince Castile & Leon
Birth - after 1230 - Of, Toledo, Toledo, Spain - William Patrick
- Robert Corbet
Birth - 1230 - Of, Moreton Corbet, Shropshire, England - Reynold Fitz Piers
Birth - about 1230 - , , England - Reynold Burghersh
Birth - about 1230 - Of Burghersh, Sussex, Of Chiddingstone, Kent - Walter Burgh
Birth - about 1230 - Of, Connaught, , Ireland - Lope Garciez de Padilla
Birth - 1230 - , , , Spain - Hugh Venables
- Richard de Davenport
Birth - about 1230 - Of, Chester, Cheshire, England - Edmund de Standish
Birth - about 1230 - , Standish, Lancashire, England - Rugh De Standish
- Simon de Montacute
Birth - about 1230 - Of, , Somersetshire, England - Egino Iv "der Bartige", Count Of Urach
- William de Braose
- William de Braose
- Theobald "Le Butzllen" Botiller (Butler
- Alfonso Ix Fernandez Leon
- Gilbert de Clare :[Earl Of Gloucester]
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