QUEBEC - A lawyer for ex-Quebec lieutenant-governor Lise Thibault is expected to be in court Friday to appeal her 18-month prison term for fraud and breach of trust.

Thibault pleaded guilty in December 2014 after a 2007 report by the federal and provincial auditors general revealed she claimed more than $700,000 in improper expenses when she held the vice-regal post.

She was sentenced to the 18 months last September but was freed after spending six nights behind bars.

Her lawyer, Marc Labelle, has said his client's case was unique, partly because she is 76, is confined to a wheelchair and has health problems, including anxiety attacks.

He said last fall the judge who imposed the sentence should have taken those factors into consideration.