INGEBORG (INGEBURGE, INGELBURGE, INGELBORG, ISEM BURGE, Dan. INGIBJoRG) (c. 1176-1237 or 1238), queen of France, was the daughter of Valdemar I., king of Denmark. She married in 1 193 Philip II. Augustus, king of France, but on the day after his marriage the king took a sudden aversion to her. The council of Compiegne acceded (Nov. 5, 1 1 93) to his demand for a declara tion of nullity, but the popes Celestine III. and Innocent III. successively took up the defence of Ingeborg. Philip, having mar ried Agnes of Meran in June 1196, was excommunicated, and as he remained obdurate, the kingdom was placed under an interdict. Agnes was finally sent away, but Ingeborg was shut up in the chateau of Etampes until, in 1213, Philip, hoping perhaps to justify by his wife's claims his pretensions to England, was rec onciled with her. She survived him more than fourteen years, passing the greater part of the time in the priory of St. Jean at Corbeil, which she had founded.