Maarten Harpertszoon Tromp (23 April 1598 – 10 August 1653) was an officer and later admiral in the Dutch navy. His first name is also spelled as Maerten.

Born in Brill, Tromp was the first son of Harpert Maertensz, a naval officer who became captain of the Olifantstromp, from the name of which ship probably the family name "Tromp" is derived, first appearing in documents in 1607. His mother washed sailor's shirts to supplement the family income. At the age of nine, Tromp went to sea with his father and was in 1607 present in a squadron covering the Dutch main fleet fighting the Battle of Gibraltar.

Three years later, his father having been discharged from service because of a navy reorganisation, they sailed together on their merchantman to Guinea, when they were attacked by seven ships of the English pirate Peter Easton. Tromp's father was slain by a cannonball. According to legend the 12-year old boy rallied the crew of the ship with the cry "Won't you avenge my father's death?" But the pirates seized him and sold him on the slave market of Salé. Two years later however, Easton, moved by pity, ordered his redemption. Set free, he supported his mother and three sisters by working in a Rotterdam shipyard, went to sea again at 19, shortly worked for the navy, but having rejoined the merchant fleet was captured once more in 1621 — this time by Barbary corsairs off Tunis. He was kept as a slave until the age of 24, and by then had so impressed the Bey of Tunis and corsair John Ward, with his skills in gunnery and navigation that the latter offered him a position in his fleet. When Tromp refused, the Bey was even more impressed by this show of character and allowed him to leave as a free man.

Maarten van Rossum (Zaltbommel, c. 1478 – Antwerpen, June 7, 1555) was a Dutch Guelderian military tactician and later field marshal at the service of Charles, Duke of Guelders.

His parents, Johan van Rossum, lord of Rossum and Johanna van Hemert probably married before 1478 and were part of the lower nobility around Bommelerwaard. During his life Maarten acquired the titles of lord of Poederoijen, Cannenburgh, Lathum, Baer and Bredevoort, field marshal of Guelders and Imperial stadholder of Luxembourg.

He is known to have been an experienced commander and is renowned for actions while serving Charles of Guelders in his Guelderian Wars against Charles V. He is also known for his participation in the sack of The Hague in 1528. After the Duchy of Guelders was defeated, he simply switched sides, and started working for Charles V, his former enemy.

In the spring of 1555 he became seriously ill, possibly infected with the Black Death or typhus in the city of Charlemont. He died in Antwerp on June 7, 1555, his body was buried at his birthplace, the village of Rossum.

Juan Leovigildo Brouwer Mezquida (born March 1, 1939 in Havana) is a Cuban composer, conductor and guitarist. He is the grandson of Cuban composer Ernestina Lecuona Casado.

As a child, Brouwer received his initial stimulus from his father, a physician, who was an aficionado of Villa-Lobos, Tárrega and Granados. He initiated his son encouraging him to play these composers' works, mostly by ear.

Young Brouwer received his first formal guitar instruction from the noted Cuban guitarist and pedagogue Isaac Nicola, in turn a disciple of Emilio Pujol. Afterwards, Brouwer went to the United States to study music at the Hartt College of Music of the University of Hartford, and later at the Juilliard School, where he studied under Vincent Persichetti and took composition classes with Stefan Wolpe.

In 1970 Brouwer played in the premiere of El Cimarrón by Hans Werner Henze in Berlin. Together with Morton Feldman, he was awarded a 1972 scholarship by the DAAD (German Academic Exchange Service) being guest composer and lecturer of Academy of Science and Arts of Berlin. In Germany Brouwer also recorded a number of LPs for Deutsche Grammophon.