.mw-parser-output .hidden-begin{box-sizing:border-box;width:100%;padding:5px;border:none;font-size:95%}.mw-parser-output .hidden-title{font-weight:bold;line-height:1.6;text-align:left}.mw-parser-output .hidden-content{text-align:left}@media all and (max-width:500px){.mw-parser-output .hidden-begin{width:auto!important;clear:none!important;float:none!important))You can help expand this article with text translated from the corresponding article in Italian. (October 2012) Click [show] for important translation instructions. View a machine-translated version of the Italian article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Italian Wikipedia article at [[:it:Giovanni I di Monaco]]; see its history for attribution. You may also add the template ((Translated|it|Giovanni I di Monaco)) to the talk page. For more guidance, see Wikipedia:Translation.

Jean I, Lord of Monaco House of GrimaldiBorn: c. 1382 Died: 1454 Preceded byCharles I, Anthony I, Gabriele and Rainier II Lord of Monaco 1395 Succeeded byLouis I Preceded byRepublic of Genova (1402–1419) Lord of Monaco Until 1427 jointly with Ambroise and Anthony II: 1419–1454 Succeeded byCatalan