Direct answer
Objectives follow journal display order. Some depend on your choices; follow the active objective in the game.
Result
When Geralt found himself in possession of a card belonging to the Skellige faction, he was incredibly surprised. He'd considered himself something of a gwent expert, yet had never heard of this faction. This card came with an invitation to a gwent tournament organized at the Pheasantry by Count Monnier, so our hero decided to seize this opportunity to find out more and perhaps collect a sweet pot while he was at it.