1: Meredith Grey's parents are Ellis Grey and Thatcher Grey.

2: Ellis Grey was a renowned surgeon at Seattle Grace Hospital.

3: Thatcher Grey is Meredith's father, who struggled with alcoholism.

4: Meredith has three half-sisters: Lexie Grey, Molly Grey Thompson, and Liz Shepherd.

5: Lexie Grey followed in her mother's footsteps and became a doctor.

6: Molly Grey Thompson is the oldest half-sister and has a daughter named Farouk.

7: Liz Shepherd is married to Derek Shepherd, Meredith's late husband.

8: Meredith also considers her close friends Cristina Yang and Alex Karev as family.

9: Meredith Grey's family tree is complex but filled with love and support.