Short answers, pulled from the story.
Carol II of Romania was born in Peleș Castle as the son of Crown Prince Ferdinand and Crown Princess Marie. He spent his early years under the thumb of King Carol I, a domineering figure who blocked his parents from raising him.
Carol II of Romania renounced succession rights on the 28th of December 1925 due to his affair with Elena Lupescu. He moved to Paris where he lived openly with Madame Lupescu until forced into exile.
Carol II of Romania returned to Romania on the 7th of June 1930 in a coup engineered by National Peasant Prime Minister Iuliu Maniu. Parliament recognized him as king the following day after he deposed his five-year-old son Michael.
On the 30th of November 1938, Carol II of Romania ordered police to arrest Iron Guardsmen without warrant and summarily execute those found with weapons. That same night he had Codreanu and thirteen other leaders murdered with the official story claiming they were shot trying to escape.
Carol II of Romania suspended the constitution and seized emergency powers on the 10th of February 1938. He dissolved all civil liberties claiming violent election campaigns risked plunging the nation into civil war.