Beatrice of Bar was the marchioness of Tuscany by marriage to Boniface III of Tuscany, and Regent of Tuscany from 1052 until her death, during the minority of and in co-regency with, her daughter Matilda. She was the daughter of Frederick II, Duke of Upper Lorraine, count of Bar, and Matilda of Swabia. She was married first to Boniface III of Tuscany and later to Godfrey of Lotharingia.
Beatrice's sarcophagus, now located in the Campo Santo at Pisa.
Boniface III, Margrave of Tuscany
Boniface III, son of Tedald of Canossa and the father of Matilda of Tuscany, was the most powerful north Italian prince of his age. By inheritance he was count of Brescia, Canossa, Ferrara, Florence, Lucca, Mantua, Modena, Pisa, Pistoia, Parma, Reggio, and Verona from 1007 and, by appointment, margrave of Tuscany from 1027 until his assassination in 1052.
Miniature of Boniface from the early twelfth-century manuscript of Donizo's Vita Mathildis (Codex Vat. Lat. 4922, fol. 28v.). The script down the side reads: Te redimat Sothér Bonifaci marchio duxque (May the Saviour redeem you Boniface, duke and margrave).