Is it true that king louis xvi asked austria to declare war on france to get the attention off of him?

No, his wife, Marie Antoinette, was the former princes of austria, when the french revolution took place they tried to flee to austria in fear of them being killed. Before arriving in Austrian land, they were captured, taken back, and held captive.They were accused of treason because they tried to run away (and because everyone just wanted to get him of the throne). The austrian army tried defending the king and his family but eventually the royal family was re-captured by the french and decapitated.