1989 Rio de Janeiro Open – Singles
Luiz Mattar won in the final 6 – 4, 5 – 7, 6 – 4 against Martín Jaite.
Ivaylo Zafirov
Ivaylo Zafirov( born 16 April 1992) is a Bulgarian football player, currently playing for Kaliakra Kavarna as a forward.
Zafirov's father Adalbert Zafirov is a former football player and current manager of Kaliakra.
1989 Guarujá Open – Singles
Luiz Mattar was the defending champion and won in the final 7 – 6, 6 – 4 against Jimmy Brown.
Ermengarde of Tuscany
Ermengarde of Tuscany( also" Ermengarda Hermengarda")( 931/ 2) was a medieval Italian noblewoman.
She was the daughter of Bertha of Lotharingia and Adalbert II, Margrave of Tuscany.
She was countess of Ivrea through marriage to Adalbert I of Ivrea.
Alongside her half- brother Hugh of Italy Ermengarde was an important opponent of Rudolf II of Burgundy ’s rule in Italy.
1994 Nuveen Championships – Singles
Andre Agassi successfully defended his title, defeating Luiz Mattar 6 – 4, 6 – 3 in the final.
Adalbert, Duke of Lorraine
Adalbert( 1000 – 11 November 1048 in Thuin) was the Duke of Upper Lorraine from 1047 until his death the next year.
He was the first son of Gerard de Bouzonville( Gerhard), Count of Metz, and Gisela( Gisella), possibly a daughter of Theodoric I, Duke of Upper Lorraine.
Gothelo I, Duke of Lower Lorraine and Upper Lorraine, died in 1044 and was succeeded by his son Godfrey III in Upper Lorraine but was refused Lower Lorraine.
Irritated, Godfrey rebelled in that same year and devastated his suzerain's lands in Lower Lorraine.
He was soon defeated and Adalbert named in his place in Upper Lorraine.
Godfrey continued to fight for all Lorraine and Adalbert died in battle against him at Thuin on 11 November 1048.
He had no known children, and Henry III, Holy Roman Emperor immediately nominated his brother Gerhard to succeed him.
Luiz Mattar
Luiz Mattar( born August 18, 1963) is a former professional tennis player from Brazil.
He played on the professional tour from 1985 – 1995, during which time he won seven top- level singles titles and five tour doubles titles.
Mattar's career- high rankings were World No. 29 in singles( in 1989) and World No. 55 in doubles( in 1991).
His career prize money totalled$ 1,493,136.
Jorge Grundman
Jorge Grundman Isla( born 1961) is a Spanish classical composer, musicologist, musician and professor who has helped to recover the music of Robert Kahn and Adalbert Gyrowetz among others through the non-profit music foundation created by him.
Adalbert Zafirov
Adalbert Zafirov( born 29 September 1969) is a Bulgarian former football centre- back who most recently managed CSKA 1948.
1990 Banespa Open – Singles
Luiz Mattar was the defending champion, and retained his title defeating Andrew Sznajder 6 – 4, 6 – 4, in the final.

Question: Did Luiz Mattar and Adalbert Zafirov have the same nationality?
Answer: no