Before 964 Conrad I King Burgundy [aged 38] and Adelaide Bellay Queen Consort Burgundy were married. She by marriage Queen Consort Burgundy. He the son of Rudolph "Pious" II King Burgundy II King Italy and Bertha Swabia Queen Consort Italy.
In 964 [her husband] Conrad I King Burgundy [aged 39] and Mathilde Carolingian Queen Consort Burgundy [aged 21] were married. She by marriage Queen Consort Burgundy. She the daughter of Louis "Overseas" IV King West Francia and Gerberga Queen Consort West Francia [aged 51]. He the son of Rudolph "Pious" II King Burgundy II King Italy and Bertha Swabia Queen Consort Italy. They were fourth cousin once removed.
On 19th October 993 [her husband] Conrad I King Burgundy [aged 68] died. His succeeded son Rudolph [aged 22] succeeded III King Burgundy.
[her daughter] Gisela Welf Duchess Bavaria was born to Conrad I King Burgundy and Adelaide Bellay Queen Consort Burgundy. She married in or before 975 Henry "Quarrelsome" II Duke Bavaria, son of Henry Saxon Ottonian I Duke Bavaria and Judith Luitpoldings, and had issue.