The arms were further augmented with supporters, a crest and a motto, by royal warrant of King Edward VII on 27 February 1909.

The year following Confederation, arms were granted by royal warrant from Queen Victoria on 26 May 1868 [1] to Ontario, along with the three other provinces of the new Dominion of Canada, Quebec, Nova Scotia and New Brunswick.

[1] The province's arms stand out for being without royal symbols, namely a crown—although the motto of Ontario, which translates from the Latin "Ut Incepit Fidelis Sic Permanet" as "Loyal She Began, Thus She Remains" references perpetual loyalty to the Crown.

Crest Shield Supporters Motto As part of the celebration in 1992 of the bicentennial of the first meeting of the legislature of Upper Canada at Newark (Niagara-on-the-Lake) on 17 September 1792, a petition was made by the then-Speaker, David Warner, to the Chief Herald of Canada for the granting of a unique coat of arms which would emphasize the distinctive character of the Legislative Assembly of Ontario and distinguish the assembly's identity from the government's.

The petition was granted and the new coat of arms was presented by then Governor-General Ramon Hnatyshyn at a ceremony in the Legislative Chamber on 26 April 1993.