"subsequently and" is correct and usable in written English
You can use it when you want to connect two different clauses that are consecutive actions or events. For example, "She decided to take a break from work, and subsequently and she began to feel much better."
This was subsequently, and in every case, corrected.
"Mr Adelson's apparent remarks were subsequently and directly quoted during a number of internal conclaves and meetings.
Kranyak raised diamonds, planning to charge on to slam subsequently, and heard his partner bid four no-trump.
Subsequently, and especially in the Late period, pure line drawing was increasingly employed.
We heard variants of the same idea in Poland in 1990, Ukraine in 1994 (and in the Ukrainian crises subsequently), and Argentina in 2002.
Ms. Ephron said Mr. Nichols called her subsequently and said he was sending it to Mr. O'Brien, who promptly agreed to direct.
They achieved so much subsequently – and the Double became so commonplace – that it's easy to forget just how big the Double Double was.
Though her gesture led to the interview being suspended abruptly, the founder of Iran's Islamic revolution subsequently, and astonishingly, agreed to resume it and, according to Ms Fallaci's account, ended up laughing out loud at her unrepentant effrontery.
An investigation into hacking at the Mirror Group titles began subsequently, and the overall investigation into newspaper phone hacking and other corrupt practices led to 154 arrests, 45 convictions, at a cost to the police of £41.3m.
The Kingdom Tower's context is the surrounding $20 billion Kingdom City that will be built subsequently – and whose origins can be found in Le Corbusier's 1922 Ville Contemporaine, which established the idea of "towers in the park".
It was the worst industrial disaster in history, killing at least 3,000 people in the days following the incident and about 15,000 subsequently, and exposing tens of thousands to poisonous gas.
