Question: Who is Anne De Laval, Viscountess Of Thouars's paternal grandfather?

Knowledge 1: Anne de Laval, Viscountess of Thouars
Anne de Laval (23 September 1505 – 1554), Princess of Taranto, was a French noblewoman and nominal pretender to the Kingdom of Naples.She was born at Vitré, Ille-et-Vilaine, the daughter of Guy XVI de Laval, count of Laval, and of Charlotte of Aragon, Princess of Taranto.She was the only child of Charlotte to marry and leave heirs, thereby continuing the line of descent of Frederick of Naples.On 23 January 1521 she married François de la Trémoïlle, "vicomte" de Thouars.The marriage not only brought the La Trémoïlles the countship of Laval and the Neapolitan claim in 1521, but also the rank of "princes étrangers" at the French court.It is also said that she inherited the barony of Laz, as well, although Père Anselme's genealogy of her family makes no mention of it.She died at Craon, aged 48 or 49.Her eldest son, Louis III de La Trémoille, became the first "duc de Thouars" in 1599, while her second son, Georges, and third son, Claude, founded the cadet branches of the "marquises de Royan" and the "ducs de Noirmoutier", respectively. [SEP] Knowledge 2: Guy XVI de Laval
Guy XVI, Count of Laval, Mayenne (1 October 1476 – 20 May 1531) was a member of the House of Laval.He was christened Nicolas, but upon inheriting the title, he took the required name of Guy, as his predecessors had done.He was the son of Jean de Laval, who was the brother of Guy XV and the son of Guy XIV and Isabella of Brittany.
Knowledge 1: Anne de Laval, Viscountess of Thouars
Anne de Laval (23 September 1505 – 1554), Princess of Taranto, was a French noblewoman and nominal pretender to the Kingdom of Naples.She was born at Vitré, Ille-et-Vilaine, the daughter of Guy XVI de Laval, count of Laval, and of Charlotte of Aragon, Princess of Taranto.She was the only child of Charlotte to marry and leave heirs, thereby continuing the line of descent of Frederick of Naples.On 23 January 1521 she married François de la Trémoïlle, "vicomte" de Thouars.The marriage not only brought the La Trémoïlles the countship of Laval and the Neapolitan claim in 1521, but also the rank of "princes étrangers" at the French court.It is also said that she inherited the barony of Laz, as well, although Père Anselme's genealogy of her family makes no mention of it.She died at Craon, aged 48 or 49.Her eldest son, Louis III de La Trémoille, became the first "duc de Thouars" in 1599, while her second son, Georges, and third son, Claude, founded the cadet branches of the "marquises de Royan" and the "ducs de Noirmoutier", respectively. [SEP] Knowledge 2: Guy XIII de Laval
Guy XIII de Laval, born Jean de Montfort, (1385- 14 August 1414, Rhodes) was seigneur of Laval and of Kergorlay.His father was Raoul IX de Montfort and his mother Jeanne de Kergorlay.He inherited the Laval title through his marriage on 22 January 1404 to Anne de Laval.As daughter and sole heir to Guy XII de Laval, Anne was "dame de Laval", and one of the conditions of the marriage was that any children born to it would bear the name and arms of the House of Laval.(The same condition had already been applied to the marriage of Emma de Laval with Mathieu II de Montmorency.)Nevertheless, Jean de Montfort renounced the name and title he had been born with to take up the name of Guy XIII de Laval, better to associate himself with his wife Anne's power.From the couple were descended several bishops and the greatest seigneurs of Brittany.Guy and Anne had 5 children:
Guy XIII died of plague on his return from a pilgrimage to the Holy Land.
Knowledge 1: Anne de Laval, Viscountess of Thouars
Anne de Laval (23 September 1505 – 1554), Princess of Taranto, was a French noblewoman and nominal pretender to the Kingdom of Naples.She was born at Vitré, Ille-et-Vilaine, the daughter of Guy XVI de Laval, count of Laval, and of Charlotte of Aragon, Princess of Taranto.She was the only child of Charlotte to marry and leave heirs, thereby continuing the line of descent of Frederick of Naples.On 23 January 1521 she married François de la Trémoïlle, "vicomte" de Thouars.The marriage not only brought the La Trémoïlles the countship of Laval and the Neapolitan claim in 1521, but also the rank of "princes étrangers" at the French court.It is also said that she inherited the barony of Laz, as well, although Père Anselme's genealogy of her family makes no mention of it.She died at Craon, aged 48 or 49.Her eldest son, Louis III de La Trémoille, became the first "duc de Thouars" in 1599, while her second son, Georges, and third son, Claude, founded the cadet branches of the "marquises de Royan" and the "ducs de Noirmoutier", respectively. [SEP] Knowledge 2: Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.

Answer: Jean de Laval