Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_14903999_1 (year INTEGER, mixed_doubles VARCHAR)
### Question:
What was the earliest year Þorvaldur Ásgeirsson Lovísa Sigurðardóttir won mixed doubles
### Answer:
SELECT MIN(year) FROM table_14903999_1 WHERE mixed_doubles = "Þorvaldur Ásgeirsson Lovísa Sigurðardóttir"