Half-Brother, Father and Step-Mother needed

Hello! Of course Carmen has some family members alive but girl doesn't anything about them. She has no idea that she has even half-brother. So it would be interesting if she finds out about it.

Half-Brother's Name: William Santiago
Age: 13
Blood Status/Species: Pureblood
Occupation: Student in some school (probably Beauxbatons)
Personality and history up to the taker.

Father's Name: Ricardo Santiago
Age: 34
Blood Status/Species: Pureblood
Occupation: Auror
Well he doesn't like Carmen. For her sleeping with Carmen's mother was biggest mistake ever. He has never told anyone he had kid with muggleborn. Other than that he is up to taker.

Step-Mother's Name: Agnes Dewlish
Age: 31
Occupation: Healer
Blood Status/Species: Pureblood
Not sure how she will think about Carmen but her life and personality up to taker.