Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the date of birth of the person who started their reign in 1986?

### Inputs:
table_name: table, columns: ['Name', 'Start of Reign', 'End of Reign', 'Birth Name', 'Title']

### Response:
SELECT Birth Name FROM table WHERE Start of Reign = 1986