Complex sentence: It was probably named after either Endsleigh Street, Endsleigh Place or Endsleigh Gardens, in Bloomsbury, on the Duke of Bedford's Bedford Estate, which streets were all named after the Duke's Devon country house Endsleigh Cottage.
Split into simpler sentences: It was probably named after either Endsleigh Street, Endsleigh Place or Endsleigh Gardens, in Bloomsbury, on the Duke of Bedford's Bedford Estate. These streets were all named after the Duke's Devon country house Endsleigh Cottage.