He was borne at Blatherwycke, his maternal grandfather's manor.

[1] He was a ward of Gilbert de Clare, 7th Earl of Gloucester during his youth.

In 1311, he succeeded his father as Baron Welles, and around the end of 1313, he succeeded his paternal grandmother Isabel, coheiress of Adam de Periton, in her inheritance.

[1] In 1319, Welles was summoned by Edward II of England to take part in his wars in Scotland, and participated in the unsuccessful siege of Berwick-upon-Tweed in the autumn of 1319.

[1] This biography of a baron or baroness in the Peerage of England is a stub.