Of the better documented expeditions, the Fleming Ferdinand van Olm (also known in Azorean history as Fernando de Ulmo or Fernão Dulmo) captained an expedition to rediscover the lost kingdoms of Sete Cidades. Ironically, Fernando de Ulmo was then married to one of the daughters of Fernão Teles and lived on one of the islands of the Azores when, in 1486, he received authorization from King João II of Portugal to begin his expedition. In partnership with Afonso do Estreito, a Madeirense, he organized his voyage, with the co-financing of the Royal Court, in order to conquer and subjugate the islands. Unfortunately, Fernão Dulmo did not have better luck, but ultimately, around the 17th Century, did organize an expedition to the northwest of Terceira, where an unknown island had been spotted.