by some that in 1044 there was an attempt made on the margrave's life at Brescia and that the conspirators fled to Verona, which Boniface subsequently sacked before expelling some Veronese conspirators from Mantua as well. One Scarpetta Carnevari apparently nursed a grudge for this act and years later, while Boniface was preparing a galley for a pilgrimage to Jerusalem, shot him with a poisoned arrow on the river Oglio, near Martino dall'Argine in the region of Spineta while on the hunt. Family Boniface and Beatrice had three children, one son, Frederick (named after his maternal grandfather), and two daughters, Beatrice (named after her own mother) and Matilda (named after her maternal grandmother). Matilda, probably born around 1046, was the youngest child. Boniface's first marriage (before 1015) was to Richilda, daughter of Giselbert II, Count Palatine of Bergamo. Richilda took little part in Boniface's government and was dead by 1034, leaving no children. In 1037, he married Beatrice, daughter of Frederick II, Duke of Upper Lorraine and Count of Bar, and niece and adoptive daughter of Empress Gisela, wife of Emperor Conrad II. They celebrated their marriage in high style, keeping court at Marengo for three months afterwards. Beatrice did bear three children, the eldest, Beatrice, died in 1053, shortly after Boniface. The only son, Frederick, succeeded his father, but died soon after. The youngest child was Matilda, who inherited the great patrimony from Frederick. Beatrice was Regent of Tuscany from 1052 until her death in 1076, during the minority of and in co-regency with, Matilda. Beatrice remarried in 1054 to Godfrey III, Duke of Lower Lorraine, who co-ruled as consort until his death in 1069. Notes References External links Letter from St Peter Damian requesting Boniface to protect the monasteries 980s births 1052 deaths Year of birth uncertain Boniface 03 House of Canossa 11th-century rulers in Europe 11th-century Italian nobility Matilda of Tuscany