sentences:  When the 2nd Earl died without male issue in 1784, the estates passed to his elder sister Emma's son Sir James Long, 7th Baronet, who being then in possession of the vast estates of the Longs, the Childs and the Tylneys, assumed the surname Tylney-Long for himself and his descendants, again probably in accordance with a requirement of the inheritance.On the death of the 7th Baronet in 1794 the combined estate passed to his one-year-old infant son Sir James Tylney-Long, 8th Baronet, who died in 1805 aged just 11.The estate then passed to his young sister, eldest of three, Catherine Tylney-Long, who thereby became the richest heiress in England.