OK I'll let you have this one roony BUT the clues all point to just one subtype - particularly the last clue that actually spells it out! I was looking for the Blenheim 1.
Built in the UK by Bristol, Avro and Rootes; in Yugoslavia by Ikarus and Finland by the State Aircraft Factories (VLT) the Mk1 was not built in Canada. Manufactured for use by the RAF, Royal Yugoslav, Finnish and Romanian Air Forces (the last were a bribe by the UK to try to persuade Romania from siding with Nazi Germany) the type saw simultaneous war service in the Winter War for Finland against the USSR and for the RAF and Romanian Air Force on opposite sides in WW2.
During WW2 Mk 1s were transferred by the British to both Greece and Turkey. Germany transferred captured Blenheims 1s to Croatian and Romanian forces.
The type was named after the Battle of Blenheim. Linked to Churchill indirectly as he was a direct descendant of the Duke of Marlborough, victor of the battle of Blenheim, Churchill was born in Blenheim Palace Oxfordshire and buried in the churchyard of St Martin, Bladon, the parish church for Blenheim Palace.
The type was a development of the Lord Rothermere inspired and payed for Bristol 142, jingoistically named Britain First.