For faster navigation, this Iframe is preloading the Wikiwand page for Luis Petcoff Naidenoff.

Luis Petcoff Naidenoff

Luis Petcoff Naidenoff
National Senator
Assumed office
10 December 2005
Personal details
Born (1967-07-13) 13 July 1967 (age 56)
El Colorado, Formosa Province, Argentina
Political partyRadical Civic Union
Other political
Juntos por el Cambio (2015–present)
SpouseCinthya Sonaridio (died 2018)
Alma materNational University of the Northeast

Luis Carlos Petcoff Naidenoff (born 13 July 1967) is an Argentine lawyer and politician. He is National Senator and is the leader of the opposition political coalition Juntos por el Cambio in the Senate.

Born in rural El Colorado, Petcoff Naidenoff studied in El Colorado and Corrientes, and graduated as a lawyer at the Universidad Nacional del Nordeste (UNNE). He worked as a lawyer in Formosa. He served as President of the Association of Young Lawyers 1996–98.

Petcoff Naidenoff was elected as a Formosa city councillor in 1999 and headed the UCR caucus, serving until 2003. He was elected to the Argentine Senate in 2005. He was the UCR candidate for Governor of Formosa in 2007, with Ana Elena Caligaris as his running mate; he lost to Gildo Insfrán.[1] Petcoff was elected president of the UCR caucus in the Senate in 2011.

Personal life

Petcoff Naidenoff is of Bulgarian descent.[2] He was married to Cinthya Sonaridio, a fellow graduate of UNNE; they had a daughter and a son. On 18 June, 2018, his wife Cinthya and their son were found dead in their home in Formosa.[3] Initial reports suggested they had succumbed to monoxide poisoning.

In 2022 he got engaged to fellow senator Carolina Losada.[4]

National Senator

In 2005 he was elected National Senator for the Province of Formosa and re-elected in 2011 and 2017. He also appeared as a candidate for governor of Formosa in 2007 and 2015, losing both times against Gildo Insfrán, who has governed the province since 1995.

Currently it integrates 15 commissions, being one of the legislators with greater participation in the commissions of the Chamber.

Since 2015 he is the leader of Cambiemos in the Senate of the Nation.

Since its assumption, it presented 262 Draft Law, in addition to numerous communication and declaration projects.

He was recognized with the Parliamentary Award for his legislative activity in the years 2009 and 2016.


  1. ^ Cómodo triunfo de Insfrán en Formosa Archived 2007-11-28 at the Wayback Machine, Ambito Financiero, accessed 26 May 2008.
  2. ^ Ташев, Спас (16 September 2010). "Спас Ташев: Чрез лицата от български произход в Латинска Америка, могат да се засилят контактите с България и ЕС като цяло" (in Bulgarian). Министерство на външните работи на Република България. Retrieved 11 October 2010.[permanent dead link]
  3. ^ "Encontraron muertos a la ex esposa y a un hijo del senador radical Luis Naidenoff". Clarín (in Spanish). 18 June 2018. Retrieved 18 June 2018.
  4. ^ de 2022, Por Diamela Rodriguez19 de Julio. "Carolina Losada y Luis Naidenoff están en pareja: cómo nació la relación en el Senado". infobae (in European Spanish). Retrieved 17 September 2022.((cite web)): CS1 maint: numeric names: authors list (link)
{{bottomLinkPreText}} {{bottomLinkText}}
Luis Petcoff Naidenoff
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!

Your input will affect cover photo selection, along with input from other users.


Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?