Title: Software Freedom Law Center
Content:  SFLC represented and advised the Free Software Foundation, one of its principal clients, throughout the process of drafting and public discussion of version 3 of the GNU General Public License (GPLv3) during 2005–2007. Along with FSF president Richard M. Stallman, SFLC director Eben Moglen and then-SFLC counsel Richard Fontana were principal authors of GPLv3, LGPLv3, and the GNU Affero General Public License.
Title: NetHack
Content:  NetHack is released under the NetHack General Public License, which was written in 1989 by Mike Stephenson, patterned after the GNU bison license (which was written by Richard Stallman in 1988). Like the Bison license, and Stallman's later GNU General Public License, the NetHack license was written to allow the free sharing and modification of the source code under its protection. At the same time, the license explicitly states that the source code is not covered by any warranty, thus protecting the original authors from litigation. The NetHack General Public License is a copyleft software license certified as an open source license by the Open Source Initiative. The NetHack General Public License allows anyone to port the game to a 
Title: Richard Fontana
Content:  Richard Fontana is a lawyer in the United States who is particularly known for his work in the area of open source and free software. Fontana works at Red Hat. Before Red Hat he was counsel at the Software Freedom Law Center (SFLC). In 2012 Fontana began drafting copyleft-next, a modification of the GNU General Public License, version 3 (GPLv3). While at SFLC, Fontana was one of the three principal authors, along with Richard Stallman and Eben Moglen, of the GPLv3, the GNU Lesser General Public License, version 3 (LGPLv3), and the GNU Affero General Public License. He is currently a member-elected director of the Open Source Initiative. Fontana attended Hunter College High School in New York City. He received a bachelor's degree in history from Wesleyan University, a master's degree in computer science from Yale University, and a law degree from the University of Michigan Law School.
Title: GPL font exception
Content:  The font exception was authored in April 2005 by David "Novalis" Turner, a Free Software Foundation GPL compliance engineer. As he explains, "The situation we were considering was one where a font was embedded in a document (rather than merely referenced). Embedding allows a document to be viewed as the author intended it even on machines that don't have that font installed. So, the document (a copyrighted work) would be derived from the font program (another work). The text of the document, of course, would be unrestricted when distributed without the font." To be in compliance with the GPL, Red Hat's Fedora Linux project included the font exception with the license for its Liberation font package, albeit with additional restrictions in 2007. These restrictions prompted further discussion among the Debian GNU/Linux distribution's community members concerning the GPL+FE. This attention prompted Ubuntu to follow suit and create the Ubuntu Font License because they were not satisfied with either the SIL OFL or with GPL+FE.
Title: DBEdit
Content:  DBEdit is free and open source software and distributed under the GNU General Public License. The source code is hosted on SourceForge.
Title: FontForge
Content:  FontForge is a FOSS font editor which supports many common font formats. Developed primarily by George Williams until 2012, FontForge is free software and is distributed under a mix of the GNU General Public License Version 3 and the 3-clause BSD license. It is available for operating systems including Linux, Windows and macOS and is localized into 12 languages.
Title: Geoffrey Knauth
Content:  Knauth joined the Free Software Foundation (FSF) Board of Directors in 1998 as treasurer. He is also co-founder of the GNU Objective-C project. On August 5, 2020, Knauth was elected as president of FSF,     11 months following the resignation of Richard Stallman, who had been its founding president since 1985. In March 25 2021 Geoffrey Knauth promised to resign from being a voting member of the FSF once there was suitable leadership to replace him.
Title: Global Politician
Content: Michael S. Hart – Ebooks inventor and founder of Project Gutenberg writes on computing topics. ; Glen Jenvey (as researcher) ; Faisal Kutty ; Dominic Whiteman 
Title: RhodeCode
Content:  Earlier versions of RhodeCode Enterprise were licensed entirely under the GNU General Public License version 3, but in August 2013, RhodeCode 2.0, introduced exceptions for parts of the software distribution. Because RhodeCode had accepted patches from independent developers, contributed under the GPL license, there was a dispute about whether the company had the legal rights to make such change. According to Bradley M. Kuhn of Software Freedom Conservancy, the exception statement is ambiguous and "leaves the redistributor feeling unclear about their rights". Furthermore, he insists, GPLv3 §7¶4 forbids behaviour of that sort. Instead of pursuing litigation, which might take years, SFC decided to fork the project under the name Kallithea, replacing the non-free files with free ones. Starting 2016, RhodeCode is open source, with source code for RhodeCode CE (Community Edition) openly available under the AGPLv3 license. As the company explains in their blog, with this move they intend "to accelerate the pace and scope of innovation on [RhodeCode] platform" (rhodecode.com, 2016). RhodeCode EE (Enterprise Edition) has a proprietary business license.
Title: Open Library
Content:  Open Library began in 2006 with Aaron Swartz as the original engineer and leader of the Open Library's technical team. The project was led by George Oates from April 2009 to December 2011. Oates was responsible for a complete site redesign during her tenure. In 2015, the project was continued by Giovanni Damiola and then Brenton Cheng and Mek Karpeles in 2016. The site was redesigned and relaunched in May 2010. Its codebase is on GitHub. The site uses Infobase, its own database framework based on PostgreSQL, and Infogami, its own Wiki engine written in Python. The source code to the site is published under the GNU Affero General Public License.

Question: Who is the author of GNU General Public License?
Answer: Free Software Foundation.
FSF.
Free Software Foundation, Inc.
Richard Stallman.
Richard M. Stallman.
rms.
Richard Matthew Stallman.
St. iGNUcius.
Chief GNUisance.