THOMAS OF LANCASTER/CONFLICT WITH HIS COUSIN,
KING EDWARD II
From day one?
Because of the bitter battle between King Edward II and his
cousin, Thomas of Lancaster, there are people, who think,
that they were enemies from the very beginning.
However, that’s not the case.
Originally, Thomas was loyal to Edward and in good terms with him,
also before his accession of King.
In 1305, Thomas was forced to apologise to Edward for being unable to come and attend him, as he was ill. Edward wrote back to say that he hoped to visit Thomas soon, “to see and to comfort you.” 
At Edward’s Edward’s coronation, on 25 february 1308, Thomas carried Curtana,
the sword of St Edward the Confessor [one of the last
Anglo Saxon Kings before William the Conqueror] 
And when you read the rest of the story, it will come as
a surprise to you, that according to some sources,Thomas was not after Kings’ favourite Piers Gaveston  from day one, but was initially rather on good terms
with him. 
He remained loyal to Edward, when in the spring of 1308, the majority
of the barons were pressing for Piers Gaveston’s exile. 
However it seems, that in november 1308, Thomas suddenly
left the Court, from reasons unknown. 
NOTES 1 -250