[3] On 30 May 1316 Wolfert II made a contract about his grandfather's estate with his brothers Sir Florence, Frank and Claas van Borselen.

[5] This happened before 6 April 1317, because on that day count William referred to his sister widow of Wolfert van Borselen, and her daughter 'Kateline'.

[8] In March 1325 he was mentioned as Florence of Borselen and Veere, when the sale of a house in Flanders was authorized by the Count of Holland on behalf of his nephew.

[9] On 22 May 1331 Florence and Klaas van Borselen were mentioned in a dispute about the dower over their deceased mother, the Lady of Voorne.

[1] On 21 June 1345 he was mentioned as the Count's nephew: Sir Wolfert van Borselen, Lord of Veere.

[6] The view that Wolfert II died c. 1317 is supported by sources that Van Mieris published about 200 years after Reygersberg.

Wolfert III's death in 1351 is supported by a work rediscovered by Van den Bergh in the 1840s.

In January and March 1348 he was mentioned as Margaret's nephew: Sir Wolfert van Borselen, Lord of Veere.

[17] On 30 March 1350 Wolfert and his wife Hadewich transferred their estate Dunebeke to Count Willem and received it back as a fief.

The rather extraordinary net sum of 10,000 pounds that Wolfert and his allies had to pay for past troubles might have played its part in this decision.