However, Princess Usui got married when she was already widowed by the loss of her former husband Masatada MATSUDAIRA of the Nagasawa Matsudaira family after the Battle of Okehazama, and Tadatsugu was already well over 30 then.
ただし、碓井姫の入嫁は桶狭間の戦い以降、前夫・長沢松平家松平政忠を失い、未亡人となってからであり、忠次も30歳をゆうに超えていた。