Question: Jeremain Lens and Sigi Lens are both Dutch what?

Context articles: Sikke
Bernard Lens I
Sigi Lens
Jeremain Lens
Segers
Artois
Murder in Amsterdam
Anton Lens
Sietske
Arnoldus Arlenius

Sikke, pron.
 [ˈsɪkə], is a fairly common West Frisian masculine given name.
 It developed from a reduced form or a hypocorism of Germanic names starting with "Sigi-" (meaning "victory").
 Sikke is cognate with the German noun "Sieg" and the Dutch noun "zege".
 It is also cognate with the Dutch masculine given name Sicco, which originated in the northeastern part of the Netherlands, in areas bordering the province of Friesland.
Bernard Lens I (c.1630–1707) was a Dutch painter and writer of religious treatises.
Sigi Lens (born 26 October 1963) is a retired Dutch-Surinamese footballer and currently is a sports agent.
 During his career he served AZ and Fortuna Sittard.
 He was one of the footballers that survived the Surinam Airways Flight PY764 air crash in Paramaribo on 7 June 1989.
 His nephew Jeremain Lens is also a professional footballer.
Jeremain Marciano Lens (born 24 November 1987) is a Dutch footballer who plays for Turkish club Beşiktaş and the Netherlands national team.
 He is a versatile attacking player, known for his pace and stamina, primarily being used as a winger or a striker, but he can successfully play as a second striker.
Segers is a Dutch patronymic surname.
 The mostly archaic Dutch given names Seger, Segher, Sieger and Zegher derive from Germanic Sigi- and -her, meaning "victorious lord".
 People with the surname Segers include
Artois (] ; adjective Artesian; Dutch: "Artesië" ) is a region of northern France.
 Its territory has an area of around 4,000 km² and a population of about one million.
 Its principal cities are Arras (Dutch: "Atrecht"), Saint-Omer, Lens, and Béthune.
Murder in Amsterdam: The Death of Theo Van Gogh and the Limits of Tolerance is a 2006 book by Ian Buruma. "
The Guardian" describes it as, "part reportage, part essay."
 It explores the impact of mass immigration from Muslim countries on Dutch culture through the lens of the murder of film director and anti-immigration activist, Theo van Gogh.
Anton Lens (28 November 1884 – 8 October 1955) was a Dutch international footballer who earned two caps for the national side in 1906.
 Lens played club football for HBS Craeyenhout between 1903 and 1909, scoring ten goals in 59 appearances.
Sietske, pron.
 [ˈsitskə], is a West Frisian feminine given name.
 The form 'Sietske', though it is prevalent, is actually the Dutch spelling of this name; the correct West Frisian spelling is Sytske (In West Frisian, 'Sietske' would be pronounced [ˈsi.ətskə]).
 Although traditional West Frisian given names are less and less popular, Sietske is still a very common girls' name in the province of Friesland.
 Sietske is the feminine form of the masculine given name Sietse (Sytse), formed by dropping the voiceless final syllable and adding a diminutive suffix in its place (in this case "-ke").
 Outside of Friesland, where no Frisian is spoken, this convention is not well known.
 Therefore, the greater part of the Sietskes from provinces other than Friesland are wrongfully addressed as "Sir" in written correspondence.
 Sietske and Sietse are both based on the stem "Siet" ("Syt").
 According to onomatologist Rienk de Haan, "Siet" is a reduced form of Germanic names starting with "Sigi-" (meaning "victory"), or possibly starting with "Sith-" (meaning "companion").
 It is also possible that it derives from Old Frisian "side" (meaning "morale").
Arnoldus Arlenius Peraxylus, (c. 1510 – 1582), born Arndt or Arnout van Eyndhouts or van Eynthouts, also known as Arnoud de Lens, was a Dutch humanist philosopher and poet.